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Thermoelectrical manipulation of nano-magnets: A spin-thermionic oscillator
KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Nanostrukturfysik.
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2010 (Engelska)Ingår i: Proceedings of SPIE - The International Society for Optical Engineering, San Diego, CA, 2010, Vol. 7760, s. 77600R-Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

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.

Ort, förlag, år, upplaga, sidor
San Diego, CA, 2010. Vol. 7760, s. 77600R-
Serie
Proceedings of SPIE - The International Society for Optical Engineering, ISSN 0277-786X ; 7760
Nyckelord [en]
Thermionics, Controlled switching, Experimental evidence, Ferromagnetic layers, Magnetization orientation, Mesoscopics, Nanomagnets, Outer layer, Relative orientation, Spin dependent transport, Ferromagnetic materials, Ferromagnetism, Magnetic field effects, Magnetic multilayers, Magnetoresistance, Nanotechnology, Magnetos
Nationell ämneskategori
Fysik
Identifikatorer
URN: urn:nbn:se:kth:diva-80611DOI: 10.1117/12.853874ISI: 000285829500009Scopus ID: 2-s2.0-77958095609ISBN: 9780819482563 (tryckt)OAI: oai:DiVA.org:kth-80611DiVA, id: diva2:496544
Konferens
Spintronics III; San Diego, CA; 1 August 2010 through 4 August 2010
Anmärkning
Sponsors: The Society of Photo-Optical Instrumentation Engineers (SPIE). QC 20120210Tillgänglig från: 2012-02-10 Skapad: 2012-02-10 Senast uppdaterad: 2012-02-10Bibliografiskt granskad

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Korenivski, Vladislav

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Andersson, SebastianKorenivski, Vladislav
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Nanostrukturfysik
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