Volume 142, Number 1, April 2023
|Number of page(s)
|Condensed matter and materials physics
|05 April 2023
Thermal transport imaging in the quantum Hall edge channel
1 Department of Physics, Tohoku University - Sendai 980-8578, Japan
2 National Institute for Materials Science - Tsukuba, Ibaraki 305-0047, Japan
(a) E-mail: email@example.com (corresponding author)
Received: 23 December 2022
Accepted: 27 March 2023
Research focused on heat transport in the quantum Hall (QH) edge channel has successfully addressed fundamental theoretical questions surrounding the QH physics. However, the picture of the edge channel is complicated by the phenomenon of energy dissipation out of the edge, and theories treating this dissipation are lacking. More experimental data is also needed to determine the coupling mechanism by which energy leaves the edge channel. We developed a method to map the heat transport in the QH edge to study the dissipation of heat. We locally heated the QH edge and locally detected the temperature increase while continuously varying the distance between heater and thermometer. We thereby obtained the thermal decay length of the edge state.
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