Thielemann-Kuehn, Nele, Schick, Daniel, Pontius, Niko, Trabant, Christoph, Mitzner, Rolf, Holldack, Karsten, Zabel, Hartmut, Foehlisch, Alexander and Schuessler-Langeheine, Christian (2017). Ultrafast and Energy-Efficient Quenching of Spin Order: Antiferromagnetism Beats Ferromagnetism. Phys. Rev. Lett., 119 (19). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

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Abstract

By comparing femtosecond laser pulse induced ferro- and antiferromagnetic dynamics in one and the same material-metallic dysprosium-we show both to behave fundamentally different. Antiferromagnetic order is considerably faster and much more efficiently reduced by optical excitation than its ferromagnetic counterpart. We assign the fast and extremely efficient process in the antiferromagnet to an interatomic transfer of angular momentum within the spin system. Our findings imply that this angular momentum transfer channel is effective in other magnetic metals with nonparallel spin alignment. They also point out a possible route towards energy-efficient spin manipulation for magnetic devices.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Thielemann-Kuehn, NeleUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schick, DanielUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pontius, NikoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Trabant, ChristophUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mitzner, RolfUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Holldack, KarstenUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zabel, HartmutUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Foehlisch, AlexanderUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schuessler-Langeheine, ChristianUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-211507
DOI: 10.1103/PhysRevLett.119.197202
Journal or Publication Title: Phys. Rev. Lett.
Volume: 119
Number: 19
Date: 2017
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 1079-7114
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
ELECTRONIC-STRUCTURE; ANGULAR-MOMENTUM; DEMAGNETIZATION; DYSPROSIUM; MAGNETOOPTICS; MAGNETISM; GDMultiple languages
Physics, MultidisciplinaryMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/21150

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