Kraus, Stefan ORCID: 0000-0002-5987-746X, Herman, Alexander ORCID: 0000-0001-6930-5572, Huttmann, Felix, Bianchi, Marco ORCID: 0000-0002-0122-9443, Stan, Raluca-Maria, Holt, Ann Julie, Tsukamoto, Shigeru ORCID: 0000-0001-5271-9277, Rothenbach, Nico, Ollefs, Katharina, Dreiser, Jan ORCID: 0000-0001-7480-1271, Bischof, Ken, Wende, Heiko ORCID: 0000-0001-8395-3541, Hofmann, Philip ORCID: 0000-0002-7367-5821, Atodiresei, Nicolae and Michely, Thomas ORCID: 0000-0003-1657-1847 (2022). Uniaxially Aligned 1D Sandwich-Molecular Wires: Electronic Structure and Magnetism. J. Phys. Chem. C, 126 (6). S. 3140 - 3151. WASHINGTON: AMER CHEMICAL SOC. ISSN 1932-7455

Full text not available from this repository.

Abstract

Sandwich-molecular wires consisting of europium and cyclooctatetraene (Cot) were grown in situ on the moire ' of graphene with Ir(110). The moire templates a uniaxial alignment of monolayer EuCot nanowire carpets and multilayer films with the EuCot wire axis along the [001] direction of the Ir substrate. Using angle-resolved photoemission spectroscopy, we investigate the band structure of the wire carpet films. While p-derived bands were not observed experimentally, we find a flat band 1.85 eV below the Fermi energy. Using density-functional theory and X-ray photoelectron spectroscopy and replacing europium through barium in the sandwich-molecular wires, it is concluded that the flat band is derived from Eu 4f states weakly mixed with Eu 5d states and slightly overlapping with Cot pi states. X-ray magnetic circular dichroism is employed to characterize the magnetic properties of the EuCot wire carpet films at low temperatures. Clear evidence for an easy-axis magnetization along the wires is found.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Kraus, StefanUNSPECIFIEDorcid.org/0000-0002-5987-746XUNSPECIFIED
Herman, AlexanderUNSPECIFIEDorcid.org/0000-0001-6930-5572UNSPECIFIED
Huttmann, FelixUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bianchi, MarcoUNSPECIFIEDorcid.org/0000-0002-0122-9443UNSPECIFIED
Stan, Raluca-MariaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Holt, Ann JulieUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tsukamoto, ShigeruUNSPECIFIEDorcid.org/0000-0001-5271-9277UNSPECIFIED
Rothenbach, NicoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ollefs, KatharinaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dreiser, JanUNSPECIFIEDorcid.org/0000-0001-7480-1271UNSPECIFIED
Bischof, KenUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wende, HeikoUNSPECIFIEDorcid.org/0000-0001-8395-3541UNSPECIFIED
Hofmann, PhilipUNSPECIFIEDorcid.org/0000-0002-7367-5821UNSPECIFIED
Atodiresei, NicolaeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Michely, ThomasUNSPECIFIEDorcid.org/0000-0003-1657-1847UNSPECIFIED
URN: urn:nbn:de:hbz:38-685769
DOI: 10.1021/acs.jpcc.1c10625
Journal or Publication Title: J. Phys. Chem. C
Volume: 126
Number: 6
Page Range: S. 3140 - 3151
Date: 2022
Publisher: AMER CHEMICAL SOC
Place of Publication: WASHINGTON
ISSN: 1932-7455
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
RAY CIRCULAR-DICHROISM; AB-INITIO; HALF-METALLICITY; BAND DISPERSION; SURFACE; NETWORKS; METALS; CYCLOPENTADIENYL; EFFICIENCY; HYSTERESISMultiple languages
Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, MultidisciplinaryMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/68576

Downloads

Downloads per month over past year

Altmetric

Export

Actions (login required)

View Item View Item