Imaging sub-ns spin dynamics in magnetic nanostructures with Magnetic Transmission X-ray microscopy

P. Fischer, H. Stoll, A. Puzic, B. Van Waeyenberge, J. Raabe, T. Haug, G. Denbeaux, A. Pearson, R. Höllinger, C. H. Back, D. Weiss, G. Schütz

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Magnetic transmission soft X-ray microscopy combining a 20nm lateral resolution with element-specific magnetic contrast was used in a stroboscopic pump-and-probe scheme to study spin dynamics in magnetic nanostructures. The pump is a short (rise time <100psec) field pulse up to 100Oe to the sample generated by an electronic pulse into a microcoil and the probe is the flash of the circularly polarized X-ray beam at the ALS with a pulse width of about 70psec, which was delayed up to 2000psec (after the pump). Results obtained at the Fe L3 edge with 4×4μm2 squared and 50nm thin permalloy elements indicate local variations of the time varying domain pattern indicatint different local precessional frequencies. The experimental findings are consistent with micromagnetic simulations and time dependent Kerr microscopy results.

Original languageEnglish
Title of host publicationSynchrotron Radiation Instrumentation
Subtitle of host publication8th International Conference on Synchrotron Radiation Instrumentation
PublisherAmerican Institute of Physics Inc.
Pages1291-1294
Number of pages4
ISBN (Electronic)0735401799
DOIs
StatePublished - 12 May 2004
Externally publishedYes
Event8th International Conference on Synchrotron Radiation Instrumentation - San Francisco, United States
Duration: 25 Aug 200329 Aug 2003

Publication series

NameAIP Conference Proceedings
Volume705
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference8th International Conference on Synchrotron Radiation Instrumentation
Country/TerritoryUnited States
CitySan Francisco
Period25/08/0329/08/03

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