Ultrafast Demagnetization Dominates Fluence Dependence of Magnetic Scattering at Co M Edges
dc.bibliographicCitation.firstPage | 127201 | eng |
dc.bibliographicCitation.issue | 12 | eng |
dc.bibliographicCitation.journalTitle | Physical review letters | eng |
dc.bibliographicCitation.volume | 125 | eng |
dc.contributor.author | Schneider, Michael | |
dc.contributor.author | Pfau, Bastian | |
dc.contributor.author | Günther, Christian M. | |
dc.contributor.author | von Korff Schmising, Clemens | |
dc.contributor.author | Weder, David | |
dc.contributor.author | Geilhufe, Jan | |
dc.contributor.author | Perron, Jonathan | |
dc.contributor.author | Capotondi, Flavio | |
dc.contributor.author | Pedersoli, Emanuele | |
dc.contributor.author | Manfredda, Michele | |
dc.contributor.author | Hennecke, Martin | |
dc.contributor.author | Vodungbo, Boris | |
dc.contributor.author | Lüning, Jan | |
dc.contributor.author | Eisebitt, Stefan | |
dc.date.accessioned | 2021-12-07T06:18:24Z | |
dc.date.available | 2021-12-07T06:18:24Z | |
dc.date.issued | 2020 | |
dc.description.abstract | We systematically study the fluence dependence of the resonant scattering cross-section from magnetic domains in Co/Pd-based multilayers. Samples are probed with single extreme ultraviolet (XUV) pulses of femtosecond duration tuned to the Co M3,2 absorption resonances using the FERMI@Elettra free-electron laser. We report quantitative data over 3 orders of magnitude in fluence, covering 16 mJ/cm2/pulse to 10 000 mJ/cm2/pulse with pulse lengths of 70 fs and 120 fs. A progressive quenching of the diffraction cross-section with fluence is observed. Compression of the same pulse energy into a shorter pulse—implying an increased XUV peak electric field—results in a reduced quenching of the resonant diffraction at the Co M3,2 edge. We conclude that the quenching effect observed for resonant scattering involving the short-lived Co 3p core vacancies is noncoherent in nature. This finding is in contrast to previous reports investigating resonant scattering involving the longer-lived Co 2p states, where stimulated emission has been found to be important. A phenomenological model based on XUV-induced ultrafast demagnetization is able to reproduce our entire set of experimental data and is found to be consistent with independent magneto-optical measurements of the demagnetization dynamics on the same samples. | eng |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/7650 | |
dc.identifier.uri | https://doi.org/10.34657/6697 | |
dc.language.iso | eng | eng |
dc.publisher | College Park, Md. : APS | eng |
dc.relation.doi | https://doi.org/10.1103/PhysRevLett.125.127201 | |
dc.relation.essn | 1079-7114 | |
dc.rights.license | CC BY 4.0 Unported | eng |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | eng |
dc.subject.ddc | 550 | eng |
dc.subject.ddc | 530 | eng |
dc.subject.other | Ultrafast magnetization dynamics | eng |
dc.subject.other | Magnetic multilayers | eng |
dc.subject.other | X-ray magnetic circular dichroism | eng |
dc.title | Ultrafast Demagnetization Dominates Fluence Dependence of Magnetic Scattering at Co M Edges | eng |
dc.type | Article | eng |
dc.type | Text | eng |
tib.accessRights | openAccess | eng |
wgl.contributor | MBI | eng |
wgl.subject | Geowissenschaften | eng |
wgl.type | Zeitschriftenartikel | eng |
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