Layer resolved magnetization dynamics in coupled magnetic films using time-resolved x-ray magnetic circular dichroism with continuous wave excitation

URN to cite this document:

urn:nbn:de:bvb:355-epub-149104 Copy

DOI to cite this document:

10.5283/epub.14910 Copy

Martin, T. ; Woltersdorf, Georg ; Stamm, C. ; Duerr, H. A. ; Mattheis, R. ; Back, Christian H. ; Bayreuther, Günther

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Date of publication of this fulltext: 07 Jun 2010 09:37

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Details

Item type:	Article
Journal or Publication Title:	Journal of Applied Physics
Publisher:	American Institute of Physics
Volume:	105
Number of Issue or Book Chapter:	7
Page Range:	07D310
Date:	April 2009
Institutions:	Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Günther Bayreuther
Identification Number:	Value Type 10.1063/1.3068650 DOI
Classification:	Notation Type 75.60.Ej PACS 78.20.Ls PACS 75.70.-i PACS
Keywords:	cobalt alloys, ferromagnetic materials, iron alloys, magnetic circular dichroism, magnetic thin films, magnetisation, nickel alloys, ruthenium
Dewey Decimal Classification:	500 Science > 530 Physics
Status:	Published
Refereed:	Yes, this version has been refereed
Created at the University of Regensburg:	Partially
Item ID:	14910

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Abstract

Time-resolved x-ray magnetic circular dichroism was used to investigate ferromagnetically coupled CoFe/Ru/NiFe bilayers. The magnetization dynamics was driven by a continuous wave excitation. The precessional motion of the individual layers was detected separately by tuning the x-ray photon energy to the L-3 absorption edge of either Ni or Co. Using two different waveguide stack ...

Abstract

Time-resolved x-ray magnetic circular dichroism was used to investigate ferromagnetically coupled CoFe/Ru/NiFe bilayers. The magnetization
dynamics was driven by a continuous wave excitation. The precessional
motion of the individual layers was detected separately by tuning the
x-ray photon energy to the L-3 absorption edge of either Ni or Co.
Using two different waveguide stack geometries in-phase and antiphase
excitation could be selected showing its effect in the measured
precessional signal of the individual layers. In exchange-coupled
bilayer two precessional modes were observed for each layer. The
relative phase angles of the magnetic response between the two layers
were found to be 8 and 133, for the two modes revealed their
quasiacoustic and quasioptic character. (c) 2009 American Institute of
Physics. [DOI: 10.1063/1.3068650]

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Metadata last modified: 26 Nov 2020 09:23

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