Spin-wave propagation and transformation in a thermal gradient
Mesoscale and Nanoscale Physics
2013-10-09 v1
Abstract
The influence of a thermal gradient on the propagation properties of externally excited dipolar spin waves in a magnetic insulator waveguide is investigated. It is shown that spin waves propagating towards a colder region along the magnetization direction continuously reduce their wavelength. The wavelength increase of a wave propagating into a hotter region was utilized to realize its decomposition in the partial waveguide modes which are reflected at different locations. This influence of temperature on spin-wave properties is mainly caused by a change in the saturation magnetization and yields promising opportunities for the manipulation of spin waves in spin-caloritronic applications.
Keywords
Cite
@article{arxiv.1211.5017,
title = {Spin-wave propagation and transformation in a thermal gradient},
author = {Björn Obry and Vitaliy I. Vasyuchka and Andrii V. Chumak and Alexander A. Serga and Burkard Hillebrands},
journal= {arXiv preprint arXiv:1211.5017},
year = {2013}
}
Comments
4 pages, 4 figures