Experimental verification of reciprocity relations in quantum thermoelectric transport
Matthews, J. ; Battista, Francesca LU ; Sanchez, D. ; Samuelsson, Peter LU and Linke, Heiner LU
(2014)
In Physical Review B (Condensed Matter and Materials Physics)
90(16).
- Abstract
- Fundamental symmetries in thermoelectric quantum transport, beyond Onsagers relations, were predicted two decades ago but have to date not been observed in experiments. Recent works have predicted the symmetries to be sensitive to energy-dependent, inelastic scattering, raising the question whether they exist in practice. Here, we answer this question affirmatively by experimentally verifying the thermoelectric reciprocity relations in a four-terminal mesoscopic device where each terminal can be electrically and thermally biased individually. The linear-response thermoelectric coefficients are found to be symmetric under simultaneous reversal of magnetic field and exchange of injection and emission contacts. We also demonstrate a... (More)
- Fundamental symmetries in thermoelectric quantum transport, beyond Onsagers relations, were predicted two decades ago but have to date not been observed in experiments. Recent works have predicted the symmetries to be sensitive to energy-dependent, inelastic scattering, raising the question whether they exist in practice. Here, we answer this question affirmatively by experimentally verifying the thermoelectric reciprocity relations in a four-terminal mesoscopic device where each terminal can be electrically and thermally biased individually. The linear-response thermoelectric coefficients are found to be symmetric under simultaneous reversal of magnetic field and exchange of injection and emission contacts. We also demonstrate a controllable breakdown of the reciprocity relations by increasing thermal bias, putting in prospect enhanced thermoelectric performance. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4875148
- author
- Matthews, J.
; Battista, Francesca
LU
; Sanchez, D.
; Samuelsson, Peter
LU
and Linke, Heiner
LU
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review B (Condensed Matter and Materials Physics)
- volume
- 90
- issue
- 16
- article number
- 165428
- publisher
- American Physical Society
- external identifiers
-
- wos:000344022800008
- scopus:84908190326
- ISSN
- 1098-0121
- DOI
- 10.1103/PhysRevB.90.165428
- language
- English
- LU publication?
- yes
- id
- 45e36892-626b-4424-ad86-32bdc16be805 (old id 4875148)
- date added to LUP
- 2016-04-01 14:37:28
- date last changed
- 2023-11-13 10:13:49
@article{45e36892-626b-4424-ad86-32bdc16be805,
abstract = {{Fundamental symmetries in thermoelectric quantum transport, beyond Onsagers relations, were predicted two decades ago but have to date not been observed in experiments. Recent works have predicted the symmetries to be sensitive to energy-dependent, inelastic scattering, raising the question whether they exist in practice. Here, we answer this question affirmatively by experimentally verifying the thermoelectric reciprocity relations in a four-terminal mesoscopic device where each terminal can be electrically and thermally biased individually. The linear-response thermoelectric coefficients are found to be symmetric under simultaneous reversal of magnetic field and exchange of injection and emission contacts. We also demonstrate a controllable breakdown of the reciprocity relations by increasing thermal bias, putting in prospect enhanced thermoelectric performance.}},
author = {{Matthews, J. and Battista, Francesca and Sanchez, D. and Samuelsson, Peter and Linke, Heiner}},
issn = {{1098-0121}},
language = {{eng}},
number = {{16}},
publisher = {{American Physical Society}},
series = {{Physical Review B (Condensed Matter and Materials Physics)}},
title = {{Experimental verification of reciprocity relations in quantum thermoelectric transport}},
url = {{https://lup.lub.lu.se/search/files/4072298/4937877.pdf}},
doi = {{10.1103/PhysRevB.90.165428}},
volume = {{90}},
year = {{2014}},
}