Scattering Theory of Gilbert Damping

Title

Scattering Theory of Gilbert Damping

 Author

Brataas, A.
Tserkovnyak, Y.
Bauer, G.E.W.

Faculty

Applied Sciences

 Department

Kavli Institute of Nanoscience

 Date

2008-07-18

 Abstract

The magnetization dynamics of a single domain ferromagnet in contact with a thermal bath is studied by scattering theory.We recover the Landau-Liftshitz-Gilbert equation and express the effective fields and Gilbert damping tensor in terms of the scattering matrix. Dissipation of magnetic energy equals energy current pumped out of the system by the time-dependent magnetization, with separable spin-relaxation induced bulk and spin-pumping generated interface contributions. In linear response, our scattering theory for the Gilbert damping tensor is equivalent with the Kubo formalism.

 To reference this document use:

http://resolver.tudelft.nl/uuid:f8671aaa-f4e4-477c-9302-185afcdf120c

 Publisher

American Physical Society

 ISSN

1079-7114

 Source

Physical Review Letters, 101 (3), 2008

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

(c) 2008 The Author(s) ; American Physical Society
Files
PDF Bauer2_2008.pdf 117.06 KB
Close viewer