Thermally driven ballistic rectifier

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原文链接

NETL
NSTL
Amer Physical Soc

外文摘要：The response of electric devices to an applied thermal gradient has, so far, been studied almost exclusively in two-terminal devices. Here we present measurements of the response to a thermal bias of a four-terminal, quasiballistic junction with a central scattering site. We find a novel transverse thermovoltage measured across isothermal contacts. Using a multiterminal scattering model extended to the weakly nonlinear voltage regime, we show that the device's response to a thermal bias can be predicted from its nonlinear response to an electric bias. Our approach forms a foundation for the discovery and understanding of advanced, nonlocal, thermoelectric phenomena that in the future may lead to novel thermoelectric device concepts.

外文关键词：

thermoelectric and thermomagnetic effectsballistic transportrectificationthermoelectric devices

作者：

J. Matthews、D. Sanchez、M. Larsson、H. Linke

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作者单位：

Physics Department and Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1274, USA

Instituto de Fisica Interdisciplinar y Sistemas Complejos IFISC (CSIC-UIB), E-07122 Palma de Mallorca, Spain

Solid State Physics and The Nanometer Structure Consortium (nmC@LU), Lund University, Box 118, S-221 00, Lund, Sweden

Physics Department and Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1274, USA,Solid State Physics and The Nanometer Structure Consortium (nmC@LU), Lund University, Box 118, S-221 00, Lund, Sweden

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出版年：

2012

DOI：

10.1103/PhysRevB.85.205309

Physical review, B. Condensed matter and materials physics

ISSN：1098-0121

年,卷(期)：2012.85(20)

被引量23
参考文献量21