Thermal electric effects in Fe|GaAs|Fe tunnel junctions

We study the spin polarized thermoelectric effects on Fe|GaAs|Fe tunnel junction using a generalized Landauer-Büttiker formalism, where the energy flow is described on the same footing as the electric current. The Seebeck coefficient of tunnel junction will change sign as the GaAs thickness increase...

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Bibliographic Details
Main Authors: Xintao Jia, Ke Xia
Format: Article
Language:English
Published: AIP Publishing LLC 2012-12-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4773464
Description
Summary:We study the spin polarized thermoelectric effects on Fe|GaAs|Fe tunnel junction using a generalized Landauer-Büttiker formalism, where the energy flow is described on the same footing as the electric current. The Seebeck coefficient of tunnel junction will change sign as the GaAs thickness increases. We demonstrate the thermally induced STT on Fe|GaAs|Fe tunnel junction is robust against the interfacial defects and is non-negligible.
ISSN:2158-3226