Naslov
Thermoelectrical manipulation of nano-magnets: A spin-thermionic oscillator

Autori
Kadigrobov, Anatoli ; Andersson, Sebastian ; Radić, Danko ; Shekhter, Robert ; Jonson, Mats ; Korenivski, Vladislav

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of SPIE / Drouhin, Henri-Jean M. ; Wegrowe, Jean-Eric ; Razeghi, Manijeh - San Francisco (CA) : SPIE, 2010, 77600R-1

ISBN
9780819482563

Skup
SPIE: Spintronics III

Mjesto i datum
San Diego (CA), Sjedinjene Američke Države, 01.08.2010. - 07.08.2010

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
exchange-spring; Curie temperature; ferromagnetic materials; ferromagnetic-paramagnetic transitions; magnetic multilayers; magnetoresistance; nanomagnetics; GMR; self-excited oscillations

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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