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. © 2010 SPIE.
|Title of host publication||Spintronics III|
|Publication status||Published - 2010|
|Event||Spintronics III - San Diego, CA, United States|
Duration: 1 Aug 2010 → 4 Aug 2010
|City||San Diego, CA|
|Period||1/08/10 → 4/08/10|