TY  - JOUR
N2  - We studied the thermal conduction through a quantum point contact (QPC), defined in a GaAs-AlxGa1-x As heterostructure, in the
presence of a transverse magnetic field. A shift in the position of a thermo-voltage peak is observed with increasing field. The position of the
thermo-voltage peak follows the Cutler-Mott relation in the small field regime (B<0.5 T); it starts diverging from the Cutler-Mott relation
in the moderate field regime, where a cubic magnetic field term dominates over the trivial quadratic term; eventually, the shift saturates in
the large field regime (B>3.0 T). Our results suggest that additional calibration is necessary when using QPC as thermometry, especially
when the transverse magnetic field is applied.
ID  - discovery10086290
PB  - AIP Publishing
UR  - https://doi.org/10.1063/1.5128906
JF  - Applied Physics Letters
A1  - Yan, C
A1  - Pepper, M
A1  - See, P
A1  - Farrer, I
A1  - Ritchie, DA
A1  - Griffiths, J
TI  - Thermoelectric property of a one dimensional channel in the presence of a transverse magnetic field
Y1  - 2019/11/11/
AV  - public
VL  - 115
IS  - 20
N1  - This work is licensed under a Creative Commons Attribution 4.0 International License. The images
or other third party material in this article are included in the Creative Commons license,
unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license,
users will need to obtain permission from the license holder to reproduce the material. To view a copy of this
license, visit http://creativecommons.org/licenses/by/4.0/
ER  -