Tengdin, Phoebe ORCID: 0000-0001-7794-1368, Truc, Benoit ORCID: 0000-0002-1350-7332, Sapozhnik, Alexey, Kong, Lingyao, del Ser, Nina, Gargiulo, Simone ORCID: 0000-0002-7820-3372, Madan, Ivan, Schoenenberger, Thomas, Baral, Priya R., Che, Ping ORCID: 0000-0003-3317-8705, Magrez, Arnaud, Grundler, Dirk, Ronnow, Henrik M., Lagrange, Thomas, Zang, Jiadong ORCID: 0000-0002-5089-9806, Rosch, Achim ORCID: 0000-0002-6586-5721 and Carbone, Fabrizio (2022). Imaging the Ultrafast Coherent Control of a Skyrmion Crystal. Phys. Rev. X, 12 (4). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2160-3308

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Abstract

Exotic magnetic textures emerging from the subtle interplay between thermodynamic and topological fluctuation have attracted intense interest due to their potential applications in spintronic devices. Recent advances in electron microscopy enable the imaging of random photogenerated individual skyrmions. However, their deterministic and dynamical manipulation is hampered by the chaotic nature of such fluctuations and the intrinsically irreversible switching between different minima in the magnetic energy landscape. Here, we demonstrate a method to coherently control the rotation of a skyrmion crystal by discrete amounts at speeds which are much faster than previously observed. By employing circularly polarized femtosecond laser pulses with an energy below the band gap of the Mott insulator Cu2OSeO3, we excite a collective magnon mode via the inverse Faraday effect. This triggers coherent magnetic oscillations that directly control the rotation of a skyrmion crystal imaged by cryo-Lorentz transmission electron microscopy. The manipulation of topological order via ultrafast laser pulses shown here can be used to engineer fast spin-based logical devices.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Tengdin, PhoebeUNSPECIFIEDorcid.org/0000-0001-7794-1368UNSPECIFIED
Truc, BenoitUNSPECIFIEDorcid.org/0000-0002-1350-7332UNSPECIFIED
Sapozhnik, AlexeyUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kong, LingyaoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
del Ser, NinaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gargiulo, SimoneUNSPECIFIEDorcid.org/0000-0002-7820-3372UNSPECIFIED
Madan, IvanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schoenenberger, ThomasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Baral, Priya R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Che, PingUNSPECIFIEDorcid.org/0000-0003-3317-8705UNSPECIFIED
Magrez, ArnaudUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Grundler, DirkUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ronnow, Henrik M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lagrange, ThomasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zang, JiadongUNSPECIFIEDorcid.org/0000-0002-5089-9806UNSPECIFIED
Rosch, AchimUNSPECIFIEDorcid.org/0000-0002-6586-5721UNSPECIFIED
Carbone, FabrizioUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-682869
DOI: 10.1103/PhysRevX.12.041030
Journal or Publication Title: Phys. Rev. X
Volume: 12
Number: 4
Date: 2022
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 2160-3308
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
MAGNETIZATIONMultiple languages
Physics, MultidisciplinaryMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/68286

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