Journal Article

FZJ-2019-05635

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Current-induced domain wall oscillations in a nanowire imaged by time-resolved photoemission electron microscopy

Khan, M. I. ; Cramm, S.FZJ* ; Bürgler, D. E.FZJ* ; Parlak, U.FZJ* ; Nemšák, S.FZJ* ; Gottlob, D. M. ; Hackl, J. ; Doğanay, H. ; Schneider, C. M. (Corresponding author)FZJ*

2019
North-Holland Publ. Co. Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.jmmm.2019.01.003

Abstract: We study reversible domain wall motion in half-ring nanowires on a nanosecond (ns) timescale in a truly current-induced pump-probe experiment using an energy filtered, aberration-corrected photoemission electron microscope. The X-ray magnetic circular dichroism signal is probed at different time delays before, during and after the current pulse in a stroboscopic mode with circularly polarized synchrotron radiation in the energy range of the Fe -edge (707 eV). We observe lateral domain wall oscillations with a frequency of 0.4 GHz. Comparing the results to a proposed string model, we find that the domain wall oscillations can be described as string-like asymmetric oscillations.

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Contributing Institute(s):

1. Elektronische Eigenschaften (PGI-6)

Research Program(s):

1. 522 - Controlling Spin-Based Phenomena (POF3-522) (POF3-522)

Appears in the scientific report 2019

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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