Thermoelectrical manipulation of nano-magnets: A spin-thermionic oscillator
Paper i proceeding, 2010

We investigate the interplay between the thermodynamic properties and spin-dependent transport in a mesoscopic magnetic multilayer, in which two strongly ferromagnetic layers are exchange-coupled through a weakly ferromagnetic spacer. We show theoretically that the system allows a spin-thermoelectronic control of the relative orientation of the outer layers. Supporting experimental evidence of thermally controlled switching from parallel to anti-parallel magnetization orientations in the sandwich is presented. We show magneto-resistance oscillations may take place with frequencies up to GHz. We discuss in detail an experimental realization of a device that can operate as a thermo-magneto-resistive switch or oscillator.

spintronics

oscillator

magneto-resistance

Författare

Anatoli M. Kadigrobov

Göteborgs universitet

Stefan Andersson

Robert I. Shekhter

Göteborgs universitet

Mats Jonson

Göteborgs universitet

V. Korenivski

Proceedings of SPIE

0277-786X (ISSN)

Vol. 7760 77600R-1 - 77600R-17-

Ämneskategorier

Annan teknik

Fysik

DOI

10.1117/12.853874