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

T. Martin; G. Woltersdorf; C. Stamm; H. A. Dürr; R. Mattheis; C. H. Back; G. Bayreuther

doi:10.1063/1.3068650

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

T. Martin
, G. Woltersdorf
, C. Stamm
, H. A. Dürr
, R. Mattheis
, C. H. Back
, G. Bayreuther

University of Regensburg
Helmholtz-Zentrum Berlin für Materialien und Energie (HZB)
Leibniz Institute of Photonic Technology (IPHT)

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

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 L3 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.

Original language	English
Article number	07D310
Journal	Journal of Applied Physics
Volume	105
Issue number	7
DOIs	https://doi.org/10.1063/1.3068650
State	Published - 2009
Externally published	Yes

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@article{45daecfac5a14fc38a82084b0cb9c3ff,

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

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 L3 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.",

author = "T. Martin and G. Woltersdorf and C. Stamm and D{\"u}rr, \{H. A.\} and R. Mattheis and Back, \{C. H.\} and G. Bayreuther",

note = "Funding Information: Support by the Deutsche Forschungsgemeinschaft DFG (Grant No. SPP1133) and BMBF (Grant No. 05 ES3XBA/5) is gratefully acknowledged. The authors thank T. Kachel for his support at the BESSY beamline and D. Weiss for the access to the cleanroom facilities.",

year = "2009",

doi = "10.1063/1.3068650",

language = "English",

volume = "105",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "7",

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TY - JOUR

T1 - Layer resolved magnetization dynamics in coupled magnetic films using time-resolved x-ray magnetic circular dichroism with continuous wave excitation

AU - Martin, T.

AU - Woltersdorf, G.

AU - Stamm, C.

AU - Dürr, H. A.

AU - Mattheis, R.

AU - Back, C. H.

AU - Bayreuther, G.

N1 - Funding Information: Support by the Deutsche Forschungsgemeinschaft DFG (Grant No. SPP1133) and BMBF (Grant No. 05 ES3XBA/5) is gratefully acknowledged. The authors thank T. Kachel for his support at the BESSY beamline and D. Weiss for the access to the cleanroom facilities.

PY - 2009

Y1 - 2009

N2 - 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 L3 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.

AB - 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 L3 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.

UR - https://www.scopus.com/pages/publications/65249103523

U2 - 10.1063/1.3068650

DO - 10.1063/1.3068650

M3 - Article

AN - SCOPUS:65249103523

SN - 0021-8979

VL - 105

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 7

M1 - 07D310

ER -

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

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