Nonuniform heat redistribution among multiple channels in the integer quantum Hall regime

被引：2

作者：

Konuma, Ryota ^{[1
]}

Lin, Chaojing ^{[1
]}

Hata, Tokuro ^{[1
]}

Hirasawa, Taichi ^{[1
]}

Akiho, Takafumi ^{[2
]}

Muraki, Koji ^{[2
]}

Fujisawa, Toshimasa ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Phys, Meguro Ku, 2-12-1 Ookayaina, Tokyo 1528551, Japan

[2] NIT Corp, NTT Basic Res Labs, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 2430198, Japan

来源：

PHYSICAL REVIEW B | 2022年 / 105卷 / 23期

关键词：

Eigen modes - Heat distribution - Heat generators - Heat transport - Landau level filling factors - Multiple channels - Quantum Hall regime - Quantum point contact - Quantum-Hall edge channels - Stepwise increase;

D O I：

10.1103/PhysRevB.105.235302

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Heat transport in multiple quantum Hall edge channels at Landau-level filling factors v = 2, 4, and 8 is investigated with a quantum point contact as a heat generator and a quantum dot as a local thermometer. Heat distribution among the channels remains highly nonuniform, which can be understood with the plasmon eigenmodes of the multiple channels. The heat transport can be controlled with another quantum point contact as a quantized heat valve, as manifested by stepwise increases of heat current at the thermometer. This encourages developing integrated heat circuits with quantum Hall edge channels.

引用

页数：8

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