Layer resolved magnetization dynamics in interlayer exchange coupled Ni81 Fe19 Ru Co90 Fe10 by time resolved x-ray magnetic circular dichroism

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

doi:10.1063/1.2836340

Layer resolved magnetization dynamics in interlayer exchange coupled Ni₈₁ Fe₁₉ Ru Co₉₀ Fe₁₀ by time resolved x-ray magnetic circular dichroism

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

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Abstract

The magnetization dynamics of each layer of interlayer exchange coupled Ni81 Fe19 Ru (t) Co90 Fe10 films was investigated by time resolved x-ray magnetic circular dichroism (TR-XMCD) after pulsed excitation. The coupling was changed from ferromagnetic to antiferromagnetic by variation of the Ru thickness t. The precessional motion of the individual layers was detected separately by measuring the XMCD signal at the L3 absorption edge of either nickel or cobalt. From the observation of two frequency components in the precession of both layers in samples with negligible interlayer exchange coupling, the presence of a different coupling mechanism was concluded. Using two different sample geometries, the influence of antiphase and in-phase excitation on the triggered dynamics was studied.

Original language	English
Article number	07B112
Journal	Journal of Applied Physics
Volume	103
Issue number	7
DOIs	https://doi.org/10.1063/1.2836340
State	Published - 2008
Externally published	Yes

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@article{1e8eb5460e9047bda5509ab79555abf3,

title = "Layer resolved magnetization dynamics in interlayer exchange coupled Ni81 Fe19 Ru Co90 Fe10 by time resolved x-ray magnetic circular dichroism",

abstract = "The magnetization dynamics of each layer of interlayer exchange coupled Ni81 Fe19 Ru (t) Co90 Fe10 films was investigated by time resolved x-ray magnetic circular dichroism (TR-XMCD) after pulsed excitation. The coupling was changed from ferromagnetic to antiferromagnetic by variation of the Ru thickness t. The precessional motion of the individual layers was detected separately by measuring the XMCD signal at the L3 absorption edge of either nickel or cobalt. From the observation of two frequency components in the precession of both layers in samples with negligible interlayer exchange coupling, the presence of a different coupling mechanism was concluded. Using two different sample geometries, the influence of antiphase and in-phase excitation on the triggered dynamics was studied.",

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 SPP1133) and BMBF (05 ES3XBA/5) is gratefully acknowledged. The authors want to thank T. Kachel for his support at the BESSY beamline, D. Weiss for the access to the cleanroom facilities, and H. Stoll for the supply with sample holder waveguides.",

year = "2008",

doi = "10.1063/1.2836340",

language = "English",

volume = "103",

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 interlayer exchange coupled Ni81 Fe19 Ru Co90 Fe10 by time resolved x-ray magnetic circular dichroism

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 SPP1133) and BMBF (05 ES3XBA/5) is gratefully acknowledged. The authors want to thank T. Kachel for his support at the BESSY beamline, D. Weiss for the access to the cleanroom facilities, and H. Stoll for the supply with sample holder waveguides.

PY - 2008

Y1 - 2008

N2 - The magnetization dynamics of each layer of interlayer exchange coupled Ni81 Fe19 Ru (t) Co90 Fe10 films was investigated by time resolved x-ray magnetic circular dichroism (TR-XMCD) after pulsed excitation. The coupling was changed from ferromagnetic to antiferromagnetic by variation of the Ru thickness t. The precessional motion of the individual layers was detected separately by measuring the XMCD signal at the L3 absorption edge of either nickel or cobalt. From the observation of two frequency components in the precession of both layers in samples with negligible interlayer exchange coupling, the presence of a different coupling mechanism was concluded. Using two different sample geometries, the influence of antiphase and in-phase excitation on the triggered dynamics was studied.

AB - The magnetization dynamics of each layer of interlayer exchange coupled Ni81 Fe19 Ru (t) Co90 Fe10 films was investigated by time resolved x-ray magnetic circular dichroism (TR-XMCD) after pulsed excitation. The coupling was changed from ferromagnetic to antiferromagnetic by variation of the Ru thickness t. The precessional motion of the individual layers was detected separately by measuring the XMCD signal at the L3 absorption edge of either nickel or cobalt. From the observation of two frequency components in the precession of both layers in samples with negligible interlayer exchange coupling, the presence of a different coupling mechanism was concluded. Using two different sample geometries, the influence of antiphase and in-phase excitation on the triggered dynamics was studied.

UR - http://www.scopus.com/inward/record.url?scp=42149184995&partnerID=8YFLogxK

U2 - 10.1063/1.2836340

DO - 10.1063/1.2836340

M3 - Article

AN - SCOPUS:42149184995

SN - 0021-8979

VL - 103

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 7

M1 - 07B112

ER -

Layer resolved magnetization dynamics in interlayer exchange coupled Ni₈₁ Fe₁₉ Ru Co₉₀ Fe₁₀ by time resolved x-ray magnetic circular dichroism

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