Universität zu Köln

2020

Valerius, Philipp ORCID: 0000-0002-2310-465X (2020). Low-energy ion irradiation and thermal annealing of supported 2D materials. PhD thesis, Universität zu Köln.

Brüning, Daniel ORCID: 0000-0001-5830-2683 (2020). Thermodynamics and transport properties of the ferromagnetic metal SrRuO3 and the frustrated magnet Cs3Fe2Br9. PhD thesis, Universität zu Köln.

Kovalev, Sergey ORCID: 0000-0002-2290-1016, Dantas, Renato M. A. ORCID: 0000-0002-2661-1948, Germanskiy, Semyon ORCID: 0000-0002-5649-2548, Deinert, Jan-Christoph ORCID: 0000-0001-6211-0158, Green, Bertram, Ilyakov, Igor, Awari, Nilesh ORCID: 0000-0002-1848-8556, Chen, Min, Bawatna, Mohammed, Ling, Jiwei, Xiu, Faxian ORCID: 0000-0003-2860-0369, van Loosdrecht, Paul H. M., Surówka, Piotr, Oka, Takashi and Wang, Zhe ORCID: 0000-0001-7464-5408 (2020). Non-perturbative terahertz high-harmonic generation in the three-dimensional Dirac semimetal Cd3As2. Nature Communications, 11 (1). p. 2451. Nature. ISSN 2041-1723

Wysocki, Lena ORCID: 0000-0002-7540-2683, Yang, Lin, Gunkel, Felix ORCID: 0000-0003-1178-9986, Dittmann, Regina, van Loosdrecht, Paul H. M. ORCID: 0000-0002-3704-9890 and Lindfors-Vrejoiu, Ionela ORCID: 0000-0003-3196-7313 (2020). Validity of magnetotransport detection of skyrmions in epitaxial SrRuO3 heterostructures. Physical Review Materials, 4 (5). 054402. APS. ISSN 2475-9953

Sahasrabudhe, A., Kaib, D. A. S. ORCID: 0000-0002-1448-0063, Reschke, S., German, R. ORCID: 0000-0003-2792-4142, Koethe, T. C. ORCID: 0000-0002-8976-0158, Buhot, J. ORCID: 0000-0003-3519-803X, Kamenskyi, D., Hickey, C., Becker, P., Tsurkan, V., Loidl, A. ORCID: 0000-0002-5579-0746, Do, S. H., Choi, K. Y., Grüninger, M. ORCID: 0000-0002-6550-8054, Winter, S. M., Wang, Zhe, Valentí, R. and van Loosdrecht, Paul H. M. ORCID: 0000-0002-3704-9890 (2020). High-field quantum disordered state in α−RuCl3 : Spin flips, bound states, and multiparticle continuum. Physical Review B, 101 (14). 140410(R). APS. ISSN 2469-9950

Jung, Eunhwan ORCID: 0000-0002-9326-6486, Budzinauskas, Kestutis, Öz, Senol, Ünlü, Feray, Kuhn, Henning, Wagner, Julian, Grabowski, David, Klingebiel, Benjamin, Cherasse, Marie, Dong, Jingwei, Aversa, Pierfrancesco, Vivo, Paola ORCID: 0000-0003-2872-6922, Kirchartz, Thomas ORCID: 0000-0002-6954-8213, Miyasaka, Tsutomu ORCID: 0000-0001-8535-7911, van Loosdrecht, Paul H. M. ORCID: 0000-0002-3704-9890, Perfetti, Luca ORCID: 0000-0002-8426-557X and Mathur, Sanjay ORCID: 0000-0003-2765-2693 (2020). Femto- to Microsecond Dynamics of Excited Electrons in a Quadruple Cation Perovskite. ACS Energy Letters, 5 (3). pp. 785-792. ACS. ISSN 2380-8195

Wysocki, Lena, Schöpf, Jörg, Ziese, Michael, Yang, Lin, Kovács, András, Jin, Lei ORCID: 0000-0001-6924-2364, Versteeg, Rolf B., Bliesener, Andrea, Gunkel, Felix, Kornblum, Lior ORCID: 0000-0001-6305-7619, Dittmann, Regina, van Loosdrecht, Paul H. M. ORCID: 0000-0002-3704-9890 and Lindfors-Vrejoiu, Ionela ORCID: 0000-0003-3196-7313 (2020). Electronic Inhomogeneity Influence on the Anomalous Hall Resistivity Loops of SrRuO3 Epitaxially Interfaced with 5d Perovskites. ACS Omega, 5 (11). pp. 5824-5833. ACS. ISSN 2470-1343

Porer, M., Rettig, L., Bothschafter, E. M., Esposito, V., Versteeg, R. B. ORCID: 0000-0002-9928-5792, van Loosdrecht, Paul H. M. ORCID: 0000-0002-3704-9890, Savoini, M., Rittmann, J., Kubli, M., Lantz, G., Schumann, O. J. ORCID: 0000-0001-9801-9591, Nugroho, A. A. ORCID: 0000-0002-1785-4008, Braden, M., Ingold, G., Johnson, S. L. ORCID: 0000-0001-6074-4894, Beaud, P. ORCID: 0000-0001-5028-9138 and Staub, U. ORCID: 0000-0003-2035-3367 (2020). Correlations between electronic order and structural distortions and their ultrafast dynamics in the single-layer manganite Pr0.5Ca1.5MnO4. Physical Review B, 101 (7). 075119. APS. ISSN 2469-9950

Malsch, Gerald, Ivaneyko, Dmytro ORCID: 0000-0001-5581-7075, Milde, Peter ORCID: 0000-0002-6844-0905, Wysocki, Lena, Yang, Lin, van Loosdrecht, Paul H. M. ORCID: 0000-0002-3704-9890, Lindfors-Vrejoiu, Ionela ORCID: 0000-0003-3196-7313 and Eng, Lukas M. (2020). Correlating the Nanoscale Structural, Magnetic, and Magneto-Transport Properties in SrRuO3-Based Perovskite Thin Films: Implications for Oxide Skyrmion Devices. ACS Applied Nano Materials, 3 (2). pp. 1182-1190. ACS. ISSN 2574-0970

Ziese, Michael ORCID: 0000-0003-4600-1095, Bern, Francis, Esquinazi, Pablo D. and Lindfors-Vrejoiu, Ionela (2020). Topological Signatures in the Hall Effect of SrRuO3/La0.7Sr0.3MnO3 SLs. Phys. Status Solidi B-Basic Solid State Phys., 257 (7). WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 1521-3951

2019

Hall, J, Ehlen, N, Berges, J, van Loon, E, van Efferen, C, Murray, C, Rösner, M, Li, J, Senkovskiy, BV, Hell, M, Rolf, M, Heider, T, Asensio, MC, Avila, J, Plucinski, L, Wehling, T, Grüneis, A and Michely, T (2019). Environmental Control of Charge Density Wave Order in Monolayer 2H-TaS2. ACS Nano.

Versteeg, Rolf Baldwin ORCID: 0000-0002-9928-5792 (2019). Optically probed order and dynamics in the chiral cluster magnet Cu2OSeO3. PhD thesis, Universität zu Köln.

Hell, Martin Gordon (2019). Combined spectroscopic and electronic transport characterization of doped graphene. PhD thesis, Universität zu Köln.

Borgwardt, Nick (2019). Optics on materials with strong spin-orbit coupling: topological insulators Bi2-xSbxTe3-ySey and the j=1/2 compounds Na2IrO3 and alpha-RuCl3. PhD thesis, Universität zu Köln.

Langenbach, Malte (2019). Giant directional dichroism in chiral Ni_3TeO_6 in THz spectroscopy in high magnetic fields. PhD thesis, Universität zu Köln.

Revelli, A., Loo, C. C., Kiese, D., Becker, P., Fröhlich, T., Lorenz, T., Moretti Sala, M., Monaco, G., Buessen, F. L., Attig, J., Hermanns, M., Streltsov, S. V., Khomskii, D. I., van den Brink, J., Braden, M., van Loosdrecht, P. H. M., Trebst, S. ORCID: 0000-0002-1479-9736, Paramekanti, A. and Grüninger, M. ORCID: 0000-0002-6550-8054 (2019). Spin-orbit entangled j=12 moments in Ba2CeIrO6 : A frustrated fcc quantum magnet. Physical Review B, 100 (8). APS. ISSN 2469-9950

Hall, Joshua ORCID: 0000-0002-7009-5602 (2019). Controlling Growth and Electronic Properties of Transition Metal Disulphide Layers via Molecular Beam Epitaxy. PhD thesis, Universität zu Köln.

Versteeg, R. B. ORCID: 0000-0002-9928-5792, Boguschewski, C., Becker, P. and van Loosdrecht, P. H. M. (2019). Inelastic light scattering in the spin cluster Mott insulator Cu2OSeO3. Physical Review B, 100 (22). p. 224426. APS. ISSN 2469-9950

Versteeg, R. B., Zhu, J., Boguschewski, C., Sekiguchi, F., Sahasrabudhe, A., Budzinauskas, K., Padmanabhan, P., Becker, P., Khomskii, D. I. and van Loosdrecht, P. H. M. (2019). Coupled dynamics of long-range and cluster-internal spin order in the cluster Mott insulator Cu2OSeO3. Physical Review B, 100 (6). 064401. APS. ISSN 2469-9950

Budzinauskas, Kęstutis, Ewertowski, Simon, Olthof, Selina, Meerholz, Klaus and Van Loosdrecht, Paul H.M. (2019). Charge carrier migration and hole extraction from MAPbI3. Journal of Physics: Conference Series, 1220. 012053. IOP. ISSN 1742-6588

Zhu, J., Versteeg, R. B., Padmanabhan, P. and van Loosdrecht, P. H. M. (2019). Dynamical resonance quench and Fano interference in spontaneous Raman scattering from quasiparticle and collective excitations. Physical Review B, 99 (9). APS. ISSN 2469-9950

Revelli, A. ORCID: 0000-0002-1284-4142, Moretti Sala, M. ORCID: 0000-0002-9744-9976, Monaco, G., Becker, P., Bohatý, L., Hermanns, M. ORCID: 0000-0003-2258-1945, Koethe, T. C., Fröhlich, T. ORCID: 0000-0002-3547-1991, Warzanowski, P., Lorenz, T. ORCID: 0000-0003-4832-5157, Streltsov, S. V. ORCID: 0000-0002-2823-1754, van Loosdrecht, P. H. M., Khomskii, D. I., van den Brink, J. and Grüninger, M. ORCID: 0000-0002-6550-8054 (2019). Resonant inelastic x-ray incarnation of Young’s double-slit experiment. Science Advances, 5 (1). eaav4020. AAAS. ISSN 2375-2548

Padmanabhan, P., Sekiguchi, F., Versteeg, R. B., Slivina, E., Tsurkan, V., Bordács, S., Kézsmárki, I. and van Loosdrecht, P. H. M. (2019). Optically Driven Collective Spin Excitations and Magnetization Dynamics in the Néel-type Skyrmion Host GaV4S8. Physical Review Letters, 122 (10). APS. ISSN 0031-9007

Han, Shuangping, Boguschewski, Christoph, Gao, Yan, Xiao, Liantuan, Zhu, Jingyi ORCID: 0000-0003-0519-4724 and van Loosdrecht, Paul H. M. (2019). Incoherent phonon population and exciton-exciton annihilation dynamics in monolayer WS2 revealed by time-resolved Resonance Raman scattering. Optics Express, 27 (21). p. 29949. OSA. ISSN 1094-4087

Tanimura, H., Tanimura, K. ORCID: 0000-0001-5165-4467 and van Loosdrecht, P. H. M. (2019). Dynamics of incoherent exciton formation in Cu2O : Time- and angle-resolved photoemission spectroscopy. Physical Review B, 100 (11). p. 115204. APS. ISSN 2469-9950

Zielińska-Raczyńska, Sylwia, Fishman, Dmitry A, Faugeras, Clément ORCID: 0000-0002-9615-8739, Potemski, Marek M P, van Loosdrecht, Paul H M, Karpiński, Karol, Czajkowski, Gerard and Ziemkiewicz, David (2019). Magneto-excitons in Cu2O: theoretical model from weak to high magnetic fields. New Journal of Physics, 21 (10). p. 103012. IOP. ISSN 1367-2630

Wang, Jialu, Yang, Liangwei, Rischau, Carl Willem, Xu, Zhuokai, Ren, Zhi, Lorenz, Thomas ORCID: 0000-0003-4832-5157, Hemberger, Joachim, Lin, Xiao ORCID: 0000-0002-1773-1761 and Behnia, Kamran (2019). Charge transport in a polar metal. npj Quantum Mater., 4. LONDON: NATURE PUBLISHING GROUP. ISSN 2397-4648

Campi, Gaetano ORCID: 0000-0001-9845-9394, Poccia, Nicola, Joseph, Boby ORCID: 0000-0002-3334-7540, Bianconi, Antonio ORCID: 0000-0001-9795-3913, Mishra, Shrawan, Lee, James, Roy, Sujoy, Nugroho, Agustinus Agung ORCID: 0000-0002-1785-4008, Buchholz, Marcel, Braden, Markus ORCID: 0000-0002-9284-6585, Trabant, Christoph, Zozulya, Alexey, Mueller, Leonard, Viefhaus, Jens, Schuessler-Langeheine, Christian, Sprung, Michael and Ricci, Alessandro (2019). Direct Visualization of Spatial Inhomogeneity of Spin Stripes Order in La1.72Sr0.28NiO4. Condens. Matter, 4 (3). BASEL: MDPI. ISSN 2410-3896

Wang, Zhe ORCID: 0000-0001-7464-5408, Schmidt, M., Loidl, A., Wu, Jianda ORCID: 0000-0002-3571-3348, Zou, Haiyuan ORCID: 0000-0002-7551-0297, Yang, Wang, Dong, Chao, Kohama, Y., Kindo, K., Gorbunov, D., I, Niesen, S., Breunig, O., Engelmayer, J. and Lorenz, T. (2019). Quantum Critical Dynamics of a Heisenberg-Ising Chain in a Longitudinal Field: Many-Body Strings versus Fractional Excitations. Phys. Rev. Lett., 123 (6). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

Engelmayer, Johannes ORCID: 0000-0002-3454-1601, Lin, Xiao, Grams, Christoph P., German, Raphael, Froehlich, Tobias, Hemberger, Joachim, Behnia, Kamran ORCID: 0000-0001-8997-5645 and Lorenz, Thomas ORCID: 0000-0003-4832-5157 (2019). Charge transport in oxygen-deficient EuTiO3: The emerging picture of dilute metallicity in quantum-paraelectric perovskite oxides. Phys. Rev. Mater., 3 (5). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2475-9953

Grams, Christoph P., Kopatz, Severin, Bruening, Daniel, Biesenkamp, Sebastian, Becker, Petra, Bohaty, Ladislav, Lorenz, Thomas ORCID: 0000-0003-4832-5157 and Hemberger, Joachim (2019). Evidence for polarized nanoregions from the domain dynamics in multiferroic LiCuVO4. Sci Rep, 9. LONDON: NATURE PUBLISHING GROUP. ISSN 2045-2322

2018

Di Pietro, P., Mitrano, M., Caramazza, S., Capitani, F., Lupi, S., Postorino, P., Ripanti, F., Joseph, B., Ehlen, N., Grüneis, A., Sanna, A., Profeta, G., Dore, P. and Perucchi, A. (2018). Emergent Dirac carriers across a pressure-induced Lifshitz transition in black phosphorus. Physical review B, 98. p. 165111. APS Physics. ISSN 2469-9969

Hell, Martin G., Ehlen, Niels, Senkovskiy, Boris V., Hasdeo, Eddwi H., Fedorov, Alexander, Dombrowski, Daniela, Busse, Carsten, Michely, Thomas, di Santo, Giovanni, Petaccia, Luca, Saito, Riichiro and Grüneis, Alexander (2018). Resonance Raman spectrum of doped epitaxial graphene at the Lifshitz transition. Nano letters. ACS Publications. ISSN 1530-6992

Waßer, Florian Tim (2018). Magnetic Excitations in Iron-based Superconductors. PhD thesis, Universität zu Köln.

Senkovskiy, B.V., Usachov, D.Y., Fedorov, A.V., Marangoni, T., Haberer, D., Tresca, C., Profeta, G., Caciuc, V., Tsukamoto, S., Atodiresei, N., Ehlen, N., Chen, C., Avila, J., Asensio, M.C., Varykhalov, A.Y., Nefedov, A., Woll, C., Kim, T.K., Hoesch, M., Fischer, F.R. and Grüneis, A. (2018). Boron-Doped Graphene Nanoribbons: Electronic Structure and Raman Fingerprint. ACS Nano, 8 (12). pp. 7571-7582. American Chemical Society. ISSN 1936-0851

Gruneis, A., Senkovskiy, B. V., Fedorov, A. V., Hell, M. and Michel, S. (2018). Ultrahigh Vacuum Optical Spectroscopy of Chemically Functionalized Graphene Nanoribbons. In: Encyclopedia of Interfacial Chemistry 1st Edition Surface Science and Electrochemistry, pp. 367-374. Elsevier. ISBN 9780128097397

Senkovskiy, Boris V., Usachov, Dmitry Yu., Fedorov, Alexander V., Haberer, Danny, Ehlen, Niels, Fischer, Felix R. and Gruneis, Alexander (2018). Finding the hidden valence band of N=7 armchair graphene nanoribbons with angle-resolved photoemission spectroscopy. 2D Materials. IOP Publishing. ISSN 2053-1583

Saigal, Nihit, Wielert, Isabelle, Capeta, Davor, Vujicic, Natasa, Senkovskiy, Boris V., Hell, Martin, Kralj, Marko and Gruneis, Alexander (2018). Effect of lithium doping on the optical properties of monolayer MoS2. Applied Physics Letters, 112 (12). p. 121902. AIP Publishing. ISSN 0003-6951

Usachov, Dmitry Yu., Fedorov, Alexander V., Vilkov, Oleg Yu., Ogorodnikov, Ilya I., Kuznetsov, Mikhail V., Grüneis, Alexander, Laubschat, Clemens and Vyalikh, Denis V. (2018). Electron-phonon coupling in graphene placed between magnetic Li and Si layers on cobalt. Physical review B, 97 (15). 085132. APS Physics. ISSN 2469-9969

Ehlen, N., Sanna, A., Senkovskiy, B. V., Petaccia, L., Fedorov, A. V., Profeta, G. and Grüneis, A. (2018). Direct observation of a surface resonance state and surface band inversion control in black phosphorus. Physical review B, 97 (4). 045143. APS Physics. ISSN 2469-9969

Kunkemöller, Stefan (2018). Spin-orbit effects and competing magnetic correlations in layered Ruthenates: A neutron scattering study using floating-zone grown single crystals. PhD thesis, Universität zu Köln.

Artyukhin, Sergey, Fishman, Dmitry, Faugeras, Clément, Potemski, Marek, Revcolevschi, Alexandre, Mostovoy, Maxim and Loosdrecht, Paul H. M. van (2018). Magneto-absorption spectra of hydrogen-like yellow exciton series in cuprous oxide: excitons in strong magnetic fields. Scientific Reports, 8 (1). Springer Nature. ISSN 2045-2322

Versteeg, R. B., Zhu, J., Padmanabhan, P., Boguschewski, C., German, R., Goedecke, M., Becker, P. and van Loosdrecht, P. H. M. (2018). A tunable time-resolved spontaneous Raman spectroscopy setup for probing ultrafast collective excitation and quasiparticle dynamics in quantum materials. Structural Dynamics, 5 (4). 044301. ACA. ISSN 2329-7778

German, R ORCID: 0000-0003-2792-4142, Zimmer, B, Koethe, T C, Barinov, A, Komarek, A C, Braden, M, Parmigiani, F and van Loosdrecht, P H M (2018). Temperature dependent percolation mechanism for conductivity in Y0.63 Ca0.37TiO3 revealed by a microstructure study. Materials Research Express, 5 (12). p. 126101. IOP. ISSN 2053-1591

Wysocki, Lena, Mirzaaghayev, Ramil, Ziese, Michael ORCID: 0000-0003-4600-1095, Yang, Lin, Schöpf, Jörg, Versteeg, Rolf B. ORCID: 0000-0002-9928-5792, Bliesener, Andrea, Engelmayer, Johannes ORCID: 0000-0002-3454-1601, Kovács, András ORCID: 0000-0001-8485-991X, Jin, Lei, Gunkel, Felix ORCID: 0000-0003-1178-9986, Dittmann, Regina ORCID: 0000-0003-1886-1864, van Loosdrecht, Paul H. M. and Lindfors-Vrejoiu, Ionela ORCID: 0000-0003-3196-7313 (2018). Magnetic coupling of ferromagnetic SrRuO3 epitaxial layers separated by ultrathin non-magnetic SrZrO3/SrIrO3. Applied Physics Letters, 113 (19). p. 192402. AIP. ISSN 0003-6951

Zhu, Jingyi ORCID: 0000-0003-0519-4724, German, Raphael, Senkovskiy, Boris V. ORCID: 0000-0003-1443-6780, Haberer, Danny, Fischer, Felix R., Grüneis, Alexander ORCID: 0000-0003-2448-6060 and van Loosdrecht, Paul H. M. (2018). Exciton and phonon dynamics in highly aligned 7-atom wide armchair graphene nanoribbons as seen by time-resolved spontaneous Raman scattering. Nanoscale, 10 (37). pp. 17975-17982. Royal Society of Chemistry. ISSN 2040-3364

Andersen, Lionel, Wang, Zhiwei ORCID: 0000-0003-0182-2471, Lorenz, Thomas ORCID: 0000-0003-4832-5157 and Ando, Yoichi ORCID: 0000-0002-3553-3355 (2018). Nematic superconductivity in Cu-1.5(PbSe)(5)(Bi2Se3)(6). Phys. Rev. B, 98 (22). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969

Faure, Quentin, Takayoshi, Shintaro, Petit, Sylvain, Simonet, Virginie, Raymond, Stephane, Regnault, Louis-Pierre, Boehm, Martin, White, Jonathan S., Mansson, Martin ORCID: 0000-0002-3086-9642, Rueegg, Christian, Lejay, Pascal, Canals, Benjamin, Lorenz, Thomas ORCID: 0000-0003-4832-5157, Furuya, Shunsuke C., Giamarchi, Thierry ORCID: 0000-0001-7409-5071 and Grenier, Beatrice (2018). Topological quantum phase transition in the Ising-like antiferromagnetic spin chain BaCo2V2O8. Nat. Phys., 14 (7). S. 716 - 724. LONDON: NATURE PUBLISHING GROUP. ISSN 1745-2481

2017

Dai, Yang (2017). Tailoring the Electronic Properties of Epitaxial Oxide Films via Strain for SAW and Neuromorphic Applications. PhD thesis, Universität zu Köln.

Nikonov, Konstantin, Ehlen, Niels, Senkovskiy, Boris, Saigal, Nihit, Fedorov, Alexander, Nefedov, Alexei, Wöll, Christoph, di Santo, Giovanni, Petaccia, Luca and Grüneis, Alexander (2017). Synthesis and spectroscopic characterization of alkali-metal intercalated ZrSe2. Dalton Transactions, 47. pp. 2986-2991. RSC publishing. ISSN 1477-9226

Markov, Aleksandr (2017). Tailoring and characterisation of bioelectronic interfaces. PhD thesis, Universität zu Köln.

Tresca, C., Verbitskiy, N.I., Fedorov, A., Gruneis, A. and Profeta, G. (2017). Alloyed surfaces: new substrates for graphene growth. Surface Science, 665. pp. 28-31. Elsevier. ISSN 0039-6028

Senkovskiy, B.V., Pfeiffer, M., Alavi, S.K., Bliesener, A., Zhu, J., Michel, S., Fedorov, A. V., German, R., Hertel, D., Haberer, D., Petaccia, L., Fischer, F.R., Meerholz, K., van Loosdrecht, P.H.M., Lindfors, K. and Grüneis, A. (2017). Making graphene nanoribbons photoluminescent. Nano letters, 17 (7). pp. 4029-4037. ACS Publications. ISSN 1530-6992

Herbig, Charlotte (2017). Ion Irradiation and Carbon Radical Exposure of Graphene and Hexagonal Boron Nitride on Iridium(111). PhD thesis, Universität zu Köln.

Pitikaris, Sebastian (2017). Local Mechanical Properties of Granular Media. Thesis Abstract, Universität zu Köln.

Jolie, Wouter (2017). Understanding, controlling and manipulating the electronic properties of layered materials. PhD thesis, Universität zu Köln.

Lindfors-Vrejoiu, Ionela, Jin, Lei, Himcinschi, Cameliu, Engelmayer, Johannes, Hensling, Felix, Jia, Chun-Lin, Waser, Rainer, Dittmann, Regina and van Loosdrecht, Paul H. M. (2017). Structure and orbital ordering of ultrathin LaVO3probed by atomic resolution electron microscopy and Raman spectroscopy. physica status solidi (RRL) - Rapid Research Letters, 11 (3). p. 1600350. Wiley. ISSN 18626254

Senkovskiy, B. V., Pfeiffer, M. ORCID: 0000-0002-1402-0374, Alavi, S. K., Bliesener, A., Zhu, J., Michel, S., Fedorov, A. V., German, R., Hertel, D., Haberer, D., Petaccia, L., Fischer, F. R. ORCID: 0000-0003-4723-3111, Meerholz, K., van Loosdrecht, P. H. M., Lindfors, K. and Grüneis, A. ORCID: 0000-0003-2448-6060 (2017). Making Graphene Nanoribbons Photoluminescent. Nano Letters, 17 (7). pp. 4029-4037. ACS. ISSN 1530-6984

Senkovskiy, Boris V., Fedorov, Alexander V., Haberer, Danny, Farjam, Mani, Simonov, Konstantin A., Preobrajenski, Alexei B., Mårtensson, Niels, Atodiresei, Nicolae, Caciuc, Vasile, Blügel, Stefan, Rosch, Achim, Verbitskiy, Nikolay I., Hell, Martin, Evtushinsky, Daniil V., German, Raphael, Marangoni, Tomas, van Loosdrecht, Paul H. M., Fischer, Felix R. and Grüneis, Alexander (2017). Semiconductor-to-Metal Transition and Quasiparticle Renormalization in Doped Graphene Nanoribbons. Advanced Electronic Materials, 3 (4). p. 1600490. Wiley. ISSN 2199160X

Breunig, Oliver ORCID: 0000-0001-8651-1757, Garst, Markus ORCID: 0000-0001-5390-3316, Kluemper, Andreas, Rohrkamp, Jens, Turnbull, Mark M. and Lorenz, Thomas ORCID: 0000-0003-4832-5157 (2017). Quantum criticality in the spin-1/2 Heisenberg chain system copper pyrazine dinitrate. Sci. Adv., 3 (12). WASHINGTON: AMER ASSOC ADVANCEMENT SCIENCE. ISSN 2375-2548

Rischau, Carl Willem, Lin, Xiao, Grams, Christoph P., Finck, Dennis, Harms, Steffen, Engelmayer, Johannes ORCID: 0000-0002-3454-1601, Lorenz, Thomas ORCID: 0000-0003-4832-5157, Gallais, Yann ORCID: 0000-0002-0589-1522, Fauque, Benoit, Hemberger, Joachim and Behnia, Kamran ORCID: 0000-0001-8997-5645 (2017). A ferroelectric quantum phase transition inside the superconducting dome of Sr1-xCaxTiO3-delta. Nat. Phys., 13 (7). S. 643 - 650. LONDON: NATURE PUBLISHING GROUP. ISSN 1745-2481

Lindfors-Vrejoiu, Ionela and Ziese, Michael ORCID: 0000-0003-4600-1095 (2017). Topological Hall effect in antiferromagnetically coupled SrRuO3/La0.7Sr0.3MnO3 epitaxial heterostructures. Phys. Status Solidi B-Basic Solid State Phys., 254 (5). WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 1521-3951

Li, Xiaoyan, Lindfors-Vrejoiu, Ionela, Ziese, Michael ORCID: 0000-0003-4600-1095, Gloter, Alexandre and van Aken, Peter A. ORCID: 0000-0003-1890-1256 (2017). Impact of interfacial coupling of oxygen octahedra on ferromagnetic order in La0.7Sr0.3MnO3/SrTiO3 heterostructures. Sci Rep, 7. LONDON: NATURE PUBLISHING GROUP. ISSN 2045-2322

2016

Hell, M. G., Senkovskiy, B. V., Fedorov, A. V., Nefedov, A., Woll, C. and Gruneis, A. (2016). Facile preparation of Au(111)/MICA substrates for high-quality graphene nanoribbon synthesis. physica status solidi (b), 253 (12). pp. 2362-2365. Wiley Online Library. ISSN 1521-3951

Ehlen, N., Senkovskiy, B. V., Fedorov, A. V., Perucchi, A., Pietro, P. Di, Sanna, A., Profeta, G., Petaccia, L. and Gruneis, A. (2016). Evolution of electronic structure of few-layer phosphorene from angle-resolved photoemission spectroscopy of black phosphorous. Physical Review B, 94. p. 245410. APS Physics. ISSN 2469-9969

Struzzi, C., Praveen, C. S., Scardamaglia, M., Verbitskiy, N. I., Fedorov, A. V., Weinl, M., Schreck, M., Gruneis, A., Piccinin, S., Fabris, S. and Petaccia, L. (2016). Controlled thermodynamics for tunable electron doping of graphene on Ir(111). Physical review B, 94 (8). 085427. APS Physics. ISSN 2469-9950

Sanna, A., Fedorov, A. V., Verbitskiy, N. I., Fink, J., Krellner, C., Petaccia, L., Chikina, A., Usachov, D. Yu., Grüneis, A. and Profeta, G. (2016). First-principles and angle-resolved photoemission study of lithium doped metallic black phosphorous. 2D Materials, 3 (2). 025031. IOP Publishing. ISSN 2053-1583

Seehafer, Jörg Ulrich (2016). Der BOLD-Effekt in der funktionellen Magnetresonanztomographie bei hoher magnetischer Feldstärke und hoher räumlicher Auflösung an Ratten. PhD thesis, Universität zu Köln.

Scharffe, Simon (2016). Thermodynamics and Heat Transport of doped Spin-Ice Materials. PhD thesis, Universität zu Köln.

Grams, Christoph (2016). (Quantum-) critical dynamics of magnetoelectric materials. PhD thesis, Universität zu Köln.

Holbein, Simon (2016). Neutron Scattering Studies on Complex Magnetic Structures in Magnetoelectric Materials. PhD thesis, Universität zu Köln.

Schröder, Ulrike Anne (2016). Changing Graphene's Properties. Etching, Intercalation, and Deuteration. PhD thesis, Universität zu Köln.

Huttmann, Felix (2016). Graphene on Iridium with Aromatic Molecules and 3d or 4f Metals: Binding, Doping, Magnetism, and Organometallic Synthesis. PhD thesis, Universität zu Köln.

2015

Gatto, Andrea (2015). The global impact of stellar winds and supernovae on the interstellar medium. PhD thesis, Universität zu Köln.

Fedorov, A., Praveen, C. S., Verbitskiy, N. I., Haberer, D., Usachov, D., Vyalikh, D. V., Nefedov, A., Woll, C., Petaccia, L., Piccinin, S., Sachdev, H., Knupfer, M., Buchner, B., Fabris, S. and Gruneis, A. (2015). Efficient gating of epitaxial boron nitride monolayers by substrate functionalization. Physical review B, 92 (12). APS Physics. ISSN 2469-9969

Usachov, Dmitry, Fedorov, Alexander V., Otrokov, Mikhail M., Chikina, Alla, Vilkov, Oleg, Petukhov, Anatoly, Rybkin, Artem G., Koroteev, Yury M., Chulkov, Evgueni V., Adamchuk, Vera K., Grueneis, Alexander, Laubschat, Clemens and Vyalikh, Denis V. (2015). Observation of single-spin Dirac fermions at the graphene/ferromagnet interface. Nano letters, 15 (4). pp. 2396-2401. ACS Publications. ISSN 1530-6992

Greben, Kyrylo (2015). Modification and Characterization of Potential Bioelectronic Interfaces. PhD thesis, Universität zu Köln.

Niesen, Sandra Katharina (2015). Synthesis and Characterizatin of Spin-Chain Compounds of the AM2V2O8 Type. PhD thesis, Universität zu Köln.

Breunig, Oliver (2015). Thermodynamics of the Spin-Chain Compounds Cs2CoCl4 and Cu(C4H4N2)(NO3)2. PhD thesis, Universität zu Köln.

Engler, Martin (2015). Self-organized Ion Beam Pattern Formation on Si(001). PhD thesis, Universität zu Köln.

Weinen, Jonas (2015). Hard X-Ray Photoelectron Spectroscopy: New Opportunities for Solid State Research. Thesis Abstract, Universität zu Köln.

Strigari, Fabio (2015). Hybridization and crystal-field effects in Kondo insulators studied by means of core-level spectroscopy. PhD thesis, Universität zu Köln.

2014

Grellmann, Thomas (2014). Cryogenic Break-Junction Characterization of Single Organic Molecules. Thesis Abstract, Universität zu Köln.

Aimon, Akfiny Hasdi (2014). Thin films preparation of Fe(3−x)Co(x)O(4) with x = 0, 0.1, 0.5, 1 and their properties. PhD thesis, Universität zu Köln.

Schumacher, Stefan (2014). Structure, Magnetism, and Binding of Novel Two-Dimensional Materials: Europium-Intercalated Graphene, Cluster Lattices, and Polar Oxide Bilayers. PhD thesis, Universität zu Köln.

Craes, Fabian (2014). Scanning Tunneling Spectroscopy on Graphene Nanostructures. PhD thesis, Universität zu Köln.

2013

Runte, Sven (2013). Atomic and Electronic Structure of Graphene and Graphene Intercalation Compounds. X-Ray Standing Wave and Scanning Tunnelling Microscopy Studies. PhD thesis, Universität zu Köln.

Finger, Thomas (2013). Analyse magnetischer Korrelationen in geschichteten oder multiferroischen Übergangsmetalloxiden durch Neutronenstreuung. PhD thesis, Universität zu Köln.

Reul, Julia Christina (2013). Effects of spin and orbital correlations on the optical spectral weights of transition-metal oxides. PhD thesis, Universität zu Köln.

Standop, Sebastian (2013). Water Adsorption and Ion Induced Defect Formation: A Comparative Study of Graphene and Noble Metal Surfaces. PhD thesis, Universität zu Köln.

Klinkhammer, Jürgen (2013). Electronic Structure and Magnetism of EuO Films on the Nanometer Scale. PhD thesis, Universität zu Köln.

Buchholz, Marcel (2013). Local Symmetry and Domain Patterns: Ordering Phenomena in Transition-Metal Oxides. PhD thesis, Universität zu Köln.

Kolland, Gerhard (2013). Thermal Conductivity of the Spin-Ice Compound Dy2Ti2O7 and the Spin-Chain System BaCo2V2O8. PhD thesis, Universität zu Köln.

Gerber, Timm (2013). Interaction of Graphene and Templated Cluster Arrays with CO, H2, and O2. PhD thesis, Universität zu Köln.

Baum, Max Michael (2013). Neutron-Scattering Studies on Chiral Multiferroics. PhD thesis, Universität zu Köln.

Pelzer, Ulrich (2013). Development of 121Sb Nuclear Forward Scattering and high pressure applications. Thesis Abstract, Universität zu Köln.

Brand, Johanna (2013). Magnetismus von unkonventionellen Supraleitern am Beispiel von Ruthenat- und Eisen-Arsenid-Verbindungen. PhD thesis, Universität zu Köln.

2012

Fahrendorf, Sarah (2012). Single NdPc2 Molecules on Surfaces: Adsorption, Interaction, and Molecular Magnetism. PhD thesis, Universität zu Köln.

Schmitz, Holger (2012). Optimization of a continuous-wave THz spectrometer for coherent broadband solid-state spectroscopy. PhD thesis, Universität zu Köln.

Ulbrich, Holger (2012). Interplay between charge, orbital, and magnetic ordering in manganites. Thesis Abstract, Universität zu Köln.

Heyer, Oliver (2012). Entwicklung von Methoden zur Untersuchung luftinstabiler Materialien und Messungen der elektrischen und thermodynamischen Eigenschaften von EuC2 und LiFeAs. PhD thesis, Universität zu Köln.

2011

Macko, Sven (2011). Mechanisms and Manipulation of Ion Beam Pattern Formation on Si(001). PhD thesis, Universität zu Köln.

Chin, Yi-Ying (2011). Valence, Orbital, and Spin States of Cobaltates: A Soft X-ray Absorption Study. Thesis Abstract, Universität zu Köln.

Altendorf, Simone (2011). Growth, electronic structure, and properties of electron-doped EuO thin films. Thesis Abstract, Universität zu Köln.

Willers, Thomas (2011). Spectroscopic Investigations of the Crystal Field and Kondo Effect in 4f Heavy-Fermion Systems. Thesis Abstract, Universität zu Köln.

Förster, Daniel F. (2011). EuO and Eu on metal crystals and graphene: interface effects and epitaxial films. PhD thesis, Universität zu Köln.

Haupricht, Tim Jakobus Thomas (2011). Transition metal impurities in wide bandgap oxides: fundamental model systems for strongly correlated oxides. PhD thesis, Universität zu Köln.

2010

Hollmann, Nils (2010). Local Magnetism and Orbital Occupation in Novel Transition Metal Oxides. Thesis Abstract, Universität zu Köln.

Bleikamp, Sebastian (2010). Stacking Faults and Twinning in Homoepitaxial Thin Films on Ir(111). PhD thesis, Universität zu Köln.

Forthaus, Martin K. (2010). Pressure-induced unusual ground states in selected correlated electron systems. Thesis Abstract, Universität zu Köln.

Gegner, Jan (2010). Electronic structure of selected ternary intermetallic compounds probed by photoelectron spectroscopy. Thesis Abstract, Universität zu Köln.

Schumann, Olaf Jochen (2010). Structural Investigations on layered Manganites and Ruthenates. PhD thesis, Universität zu Köln.

2009

Ahmida, Mahmoud Abdelrazek (2009). EuCu2(Ge1-xSix)2: A Model System to Study Charge Fluctuations across a Quantum Phase Transition. Thesis Abstract, Universität zu Köln.

Sutarto, Ronny (2009). EuO and Gd-doped EuO thin films: epitaxial growth and properties. PhD thesis, Universität zu Köln.

Komarek, Alexander Christoph (2009). Complex ordering phenomena in transition metal oxides and oxyhalides. PhD thesis, Universität zu Köln.

Möller, Thomas André David (2009). Phonons and crystal-field excitations in highly correlated materials probed by optical spectroscopy. PhD thesis, Universität zu Köln.

Hilgers, Christina (2009). The Electronic Structure of Spin Ladders and Spin Chains Studied by Ellipsometry. PhD thesis, Universität zu Köln.

Chang, Chun-Fu (2009). Study of Charge, Spin, and Orbital States in Strongly Correlated Transition-Metal Oxides. Thesis Abstract, Universität zu Köln.

2008

Roth, Holger (2008). Single crystal growth and electron spectroscopy of d1-systems. PhD thesis, Universität zu Köln.

Burnus, Tobias (2008). Study of charge, spin and orbital states in novel transiton-metal oxides using x-ray absorption spectroscopy. Thesis Abstract, Universität zu Köln.

Johannsen, Niko (2008). Nernst effect of Ni-doped NdBa2Cu3O7-d and transport properties in UPt2Si2. PhD thesis, Universität zu Köln.

Burnus, Tobias (2008). Study of Charge, Spin and Orbital States in Novel Transition-Metal Oxides Using X-Ray Absorption Spectroscopy. PhD thesis, Universität zu Köln.

2007

Kordonis, Konstantinos (2007). Wärmetransport in eindimensionalen Spinsystemen. PhD thesis, Universität zu Köln.

Benomar, Mohammed (2007). Einkristall-Präparation und Charakterisierung von dotiertem La2MO4 mit M = Co, Mn und Ni. Thesis Abstract, Universität zu Köln.

Gößling, Alexander (2007). Electronic structure of Titanates and layered Manganites probed by optical spectroscopy. PhD thesis, Universität zu Köln.

Cwik, Matthias (2007). The Interplay of Lattice, Spin, and Charge Degrees of Freedom in Layered Cobaltates. PhD thesis, Universität zu Köln.

Stein, Wolf-Dieter R. (2007). Struktur und Gitterdynamik in azentrischen Boraten. PhD thesis, Universität zu Köln.

Senff, Daniel (2007). Neutron Scattering Studies on Magnetic Excitations in Complex Ordered Manganites. PhD thesis, Universität zu Köln.

Steffens, Paul C. (2007). Magnetism in layered Ruthenates. PhD thesis, Universität zu Köln.

Benckiser, Eva Vera (2007). Optical Spectroscopy of Orbital and Magnetic Excitations in Vanadates and Cuprates. PhD thesis, Universität zu Köln.

2006

Braak, Heiko (2006). Mit Mangan und Eisen ko-dotiertes Germanium: ein ferromagnetischer Halbleiter? PhD thesis, Universität zu Köln.

Baier, Jörg (2006). Magnetoelastische Kopplung in multiferroischem GdMnO_3 und metamagnetischem Ca_(2-x)Sr_xRuO_4. PhD thesis, Universität zu Köln.

Schlappa, Justina (2006). Investigation of electronic order using resonant soft x-ray diffraction. PhD thesis, Universität zu Köln.

Berggold, Kai (2006). Thermal Transport in Cuprates, Cobaltates, and Manganites. PhD thesis, Universität zu Köln.

Koethe, Thomas Christoph (2006). Bulk sensitive Photoelectron Spectroscopy of strongly correlated transition metal oxides. PhD thesis, Universität zu Köln.

Rückamp, Reinhard (2006). Orbital excitations of transition-metal oxides in optical spectroscopy. PhD thesis, Universität zu Köln.

2005

Haverkort, Maurits (2005). Spin and orbital degrees of freedom in transition metal oxides and oxide thin films studied by soft x-ray absorption spectroscopy. PhD thesis, Universität zu Köln.

Kriener, Markus (2005). Spinzustandsänderung, magnetische Ordnung und Metall-Isolator-Übergang in Kobaltaten. PhD thesis, Universität zu Köln.

Lengsdorf, Roman G. (2005). Interplay between Transport, Magnetism and Structural Properties of Transition Metal Oxides under High Pressure. PhD thesis, Universität zu Köln.

2004

Stein, Simon (2004). Barrier and interface properties of magnetic tunneling junctions studied via electrical transport. Thesis Abstract, Universität zu Köln.

Zabel, Thomas (2004). Aufbau eines Tieftemperatur-Kalorimeters und kalorische Messungen an TlCuCl3 und Ca2-xSrxRuO4. PhD thesis, Universität zu Köln.

Zare Kolsaraki, Hamid (2004). Tunnelmagnetowiderstand zwischen Übergangsmetallclustern getrennt durch isolierende Moleküle. PhD thesis, Universität zu Köln.

2003

Lennartz, Werner (2003). Strukturuntersuchungen an intrinsisch leitfähigen Polyanilin/PMMA-Blends. SAXS als Meßverfahren zur Bestimmung der Morphologie synthetischer Metalle. PhD thesis, Universität zu Köln.

2002

Bakehe, Sylvie Noelle (2002). Präparation und Charakterisierung von Selten-Erd-dotierten Nickelaten und einkristallinen, elektrodotierten Hochtemperatur-Supraleitern. PhD thesis, Universität zu Köln.

Hofmann, Michael (2002). Anomalous Heat Transport in Low-Dimensional Quantum Spin Systems. PhD thesis, Universität zu Köln.

Kemen, Thomas (2002). Mesoskopische Normalleiter-Supraleiter-Systeme. PhD thesis, Universität zu Köln.

Haibel, Astrid (2002). Signalausbreitung in photonischen Barrieren - Transmissions- und Reflexionszeitmessungen am Doppelprisma und an periodischen Strukturen. PhD thesis, Universität zu Köln.

Zittartz, Marc Alexander (2002). Anomaler Hall-Effekt in dotierten Kobaltaten. PhD thesis, Universität zu Köln.

Herbstritt, Frank Nikolaus (2002). Ladungstransport und Rauschen in submikrometer-strukturierten Korngrenzenkontakten aus YBA 2 Cu 3 O 7-delta. Thesis Abstract, Universität zu Köln.

Heß, Christian Peter (2002). Thermischer Transport in Übergangsmetalloxiden mit niedrigdimensionalen Ladungs- und Spinstrukturen. Thesis Abstract, Universität zu Köln.

Windt, Marco Sascha (2002). Optical Spectroscopy of Spin Ladders. PhD thesis, Universität zu Köln.

Plessel, Jochen (2002). Hochdruckuntersuchungen an Yb-Kondo-Gitter-Systemen in der Nähe einer magnetischen Instabilität. Thesis Abstract, Universität zu Köln.

Schöneberger, Ralph (2002). Spezifische Wärme von La(5/8-x)Pr(x)Ca(3/8)MnO(3) und Li(2)CuO(2). PhD thesis, Universität zu Köln.

Vetter, Ralf-Michael (2002). Simulation von Tunnelstrukturen - Experimentelle und theoretische Untersuchungen an Systemen mit anomaler Dispersion. PhD thesis, Universität zu Köln.

2001

Leinders, Harald (2001). Numerische Simulation effektiver Medien und Absorberstrukturen im Zeitbereich. PhD thesis, Universität zu Köln.

Spanoudaki, Anna (2001). Dielektrische Untersuchungen an Ferrofluiden zum Einfluss der Mikrostruktur auf die effektiven Eigenschaften von Kompositen. Thesis Abstract, Universität zu Köln.