Journal Article

PreJuSER-19966

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Time-resolved measurements of Ni(80)Fe(20)/MgO/Co trilayers in the extreme ultraviolet range

Adam, R.FZJ* ; Grychtol, P.FZJ* ; Cramm, S.FZJ* ; Schneider, C. M.FZJ*

2011
Elsevier New York, NY [u.a.]

This record in other databases:  

Please use a persistent id in citations: doi:10.1016/j.elspec.2010.12.017

Abstract: We performed an element-selective magneto-optic characterization of Ni80Fe20/MgO/Co magnetic trilayers employing the resonant magnetic reflectivity of extreme ultraviolet (XUV) radiation tuned to the M absorption edges of cobalt (60.2 eV) and nickel (67.5 eV). Static reflectivity shows a large magnetic contrast of up to 80% for the top Co and 20% for the buried Ni80Fe20 layers. The magneto-dynamic response of the trilayers to the ultrashort field pulse exhibits oscillations in a frequency range of up to 6.5 GHz associated exclusively with magnetization dynamics of the top Co layer. The presented results demonstrate the feasibility of element-specific magneto-dynamic studies of magnetic multilayers employing resonant XUV reflectivity at the M absorption edges. (C) 2010 Elsevier B.V. All rights reserved.

Keyword(s): J ; Magnetic multilayers (auto) ; Time-resolved MOKE (auto) ; Pump-probe (auto) ; Extreme ultraviolet (auto) ; XUV (auto) ; Element-selectivity (auto)

Note: We acknowledge our colleagues B. Kupper, J. Lauer and H. Pfeifer for their support in construction, software and electronics development. We thank R. Schreiber for the sample preparation. We appreciate the work of Dr. M. Nagel from RWTH Aachen whose group characterized the CPW. Financial support through the BMBF (project No. 05KS7UK1) is gratefully appreciated.

---

Contributing Institute(s):

1. Elektronische Eigenschaften (PGI-6)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2011

---