Coupling of spinwave modes in wire structures

H. G. Bauer; J. Y. Chauleau; G. Woltersdorf; C. H. Back

doi:10.1063/1.4868250

Coupling of spinwave modes in wire structures

H. G. Bauer
, J. Y. Chauleau
, G. Woltersdorf
, C. H. Back

University of Regensburg

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

20 Scopus citations

Abstract

We investigate the magnon dispersion of spinwaves propagating in a Permalloy stripe and compare it to a plain film. We use a Scanning Kerr Microscope to directly image their spatial propagation- and decay properties as well as micromagnetic simulations to extract additional information about the static magnetization distribution. For low external fields, we find anti-crossings for the dispersion branches corresponding to different transverse wave vectors that also occur as minima of the decay length for the spinwave.

Original language	English
Article number	102404
Journal	Applied Physics Letters
Volume	104
Issue number	10
DOIs	https://doi.org/10.1063/1.4868250
State	Published - 10 Mar 2014
Externally published	Yes

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title = "Coupling of spinwave modes in wire structures",

abstract = "We investigate the magnon dispersion of spinwaves propagating in a Permalloy stripe and compare it to a plain film. We use a Scanning Kerr Microscope to directly image their spatial propagation- and decay properties as well as micromagnetic simulations to extract additional information about the static magnetization distribution. For low external fields, we find anti-crossings for the dispersion branches corresponding to different transverse wave vectors that also occur as minima of the decay length for the spinwave.",

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AU - Chauleau, J. Y.

AU - Woltersdorf, G.

AU - Back, C. H.

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Y1 - 2014/3/10

N2 - We investigate the magnon dispersion of spinwaves propagating in a Permalloy stripe and compare it to a plain film. We use a Scanning Kerr Microscope to directly image their spatial propagation- and decay properties as well as micromagnetic simulations to extract additional information about the static magnetization distribution. For low external fields, we find anti-crossings for the dispersion branches corresponding to different transverse wave vectors that also occur as minima of the decay length for the spinwave.

AB - We investigate the magnon dispersion of spinwaves propagating in a Permalloy stripe and compare it to a plain film. We use a Scanning Kerr Microscope to directly image their spatial propagation- and decay properties as well as micromagnetic simulations to extract additional information about the static magnetization distribution. For low external fields, we find anti-crossings for the dispersion branches corresponding to different transverse wave vectors that also occur as minima of the decay length for the spinwave.

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U2 - 10.1063/1.4868250

DO - 10.1063/1.4868250

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SN - 0003-6951

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JO - Applied Physics Letters

JF - Applied Physics Letters

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Coupling of spinwave modes in wire structures

Abstract

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