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

共 44 条

[11] Plasmon modes of coupled quantum Hall edge channels in the presence of disorder-induced tunneling
Fujisawa, Toshimasa
Lin, Chaojing
[J]. PHYSICAL REVIEW B, 2021, 103 (16)
[12] Gemmer J, 2009, LECT NOTES PHYS, V784, P1
[13] Giamarchi T, 2004, INT SERIES MONOGRAPH
[14] Quantifying nonequilibrium thermodynamic operations in a multiterminal mesoscopic system
Hajiloo, Fatemeh
Sanchez, Rafael
Whitney, Robert S.
Splettstoesser, Janine
[J]. PHYSICAL REVIEW B, 2020, 102 (15)
[15] Role of metallic leads and electronic degeneracies in thermoelectric power generation in quantum dots
Harzheim, Achim
Sowa, Jakub K.
Swett, Jacob L.
Briggs, G. Andrew D.
Mol, Jan A.
Gehring, Pascal
[J]. PHYSICAL REVIEW RESEARCH, 2020, 2 (01):
[16] Hashisaka M, 2017, NAT PHYS, V13, P559, DOI [10.1038/NPHYS4062, 10.1038/nphys4062]
[17] Hashisaka M., 2018, REV PHYS, V13, P32, DOI [10.1016/j.revip.2018.07.001, DOI 10.1016/J.REVIP.2018.07.001]
[18] Distributed-element circuit model of edge magnetoplasmon transport
Hashisaka, Masayuki
Kamata, Hiroshi
Kumada, Norio
Washio, Kazuhisa
Murata, Ryuji
Muraki, Koji
Fujisawa, Toshimasa
[J]. PHYSICAL REVIEW B, 2013, 88 (23):
[19] Distributed electrochemical capacitance evidenced in high-frequency admittance measurements on a quantum Hall device
Hashisaka, Masayuki
Washio, Kazuhisa
Kamata, Hiroshi
Muraki, Koji
Fujisawa, Toshimasa
[J]. PHYSICAL REVIEW B, 2012, 85 (15)
[20] Heikkila TT., 2013, PHYS NANOELECTRONICS

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