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Spin wave amplification driven by heat flow: the role of damping and exchange interaction
- Publication Year :
- 2012
-
Abstract
- In this article we report on micromagnetic simulations performed on a permalloy nanostructure in presence of a uniform thermal gradient. Our numerical simulations show that heat flow is an effective mean to compensate the damping, and that the gradients at which spin-wave amplification is observed are experimentally accessible. In particular, we have studied the role of the Gilbert damping parameter on spin-wave amplification.<br />Comment: this paper has been withdrawn to be re-written
- Subjects :
- Condensed Matter - Mesoscale and Nanoscale Physics
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.1205.5650
- Document Type :
- Working Paper