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Thermally driven ballistic rectifier

Matthews, J.; Sanchez, D.; Larsson, Marcus LU and Linke, Heiner LU (2012) In Physical Review B (Condensed Matter and Materials Physics) 85(20).
Abstract
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.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
85
issue
20
publisher
American Physical Society
external identifiers
  • wos:000303859200003
  • scopus:84861557983
ISSN
1098-0121
DOI
10.1103/PhysRevB.85.205309
language
English
LU publication?
yes
id
d1950452-2adb-43f3-88ad-ce852b20592e (old id 2826549)
date added to LUP
2012-06-20 14:58:21
date last changed
2017-07-30 04:07:37
@article{d1950452-2adb-43f3-88ad-ce852b20592e,
  abstract     = {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.},
  articleno    = {205309},
  author       = {Matthews, J. and Sanchez, D. and Larsson, Marcus and Linke, Heiner},
  issn         = {1098-0121},
  language     = {eng},
  number       = {20},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Thermally driven ballistic rectifier},
  url          = {http://dx.doi.org/10.1103/PhysRevB.85.205309},
  volume       = {85},
  year         = {2012},
}