Three-terminal normal-superconductor junction as thermal transistor

Tang, Gaomin; Peng, Jianhe; Wang, Jian‐Sheng

doi:10.1140/epjb/e2019-90747-0

Cited by 6 publications

(5 citation statements)

References 63 publications

(86 reference statements)

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“…Engineering devices to couple heat with electrically measurable quantities has been extremely difficult in the domain of solid-state nano-technology. In the aspect of thermally controlled electrical transport in nano-scale systems; thermoelectric engines , refrigerators [27][28][29][30][31][32][33][34][35][36][37][38], rectifiers [39][40][41][42][43][44] and transistors [45][46][47][48][49][50][51][52] have been proposed in the last decade. Recently, the provision towards non-local thermal control of electrical transport, where electrical variables between two terminals are manipulated via thermal action at a remote third terminal, has been proposed and realized experimentally [53][54][55][56][57][58][59][60][61][62][63][64][65].…”

Section: Introductionmentioning

confidence: 99%

A non-local cryogenic thermometer based on Coulomb-coupled systems

Banerjee,

Singha

2020

Preprint

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We propose a realistic design for Coulomb-coupled system based non-local cryogenic electrical thermometer. The operation of the proposed thermometer relies on electrostatic interaction between Coulomb coupled quantum dots, resulting in a overall change in conductance due to change in the remote reservoir temperature. The performance and regime of operation of the proposed thermometer is then theoretically investigated using density matrix formulation and compared with another recently proposed Coulomb coupled system based thermometer. It is demonstrated that the proposed design ensures a superior temperature sensitivity and robustness compared to the other design proposed in literature (Physica E, 114, 113635, 2019). At the end we investigate the regime of optimal operation and comment on the ground state configuration for optimal operation of the proposed thermometer. The design proposed in this paper can be employed to construct highly efficient non-local cryogenic thermometers.

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Section: Introductionmentioning

confidence: 99%

A non-local cryogenic thermometer based on Coulomb-coupled systems

Banerjee,

Singha

2020

Preprint

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“…The phenomenon of thermoelectric transport at the mesoscopic level has been widely explored in nanostructures to achieve this goal [1,2]. This includes the design of nanoscale heat engines [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19], refrigerators [20][21][22][23][24][25][26][27], thermal rectifiers [28][29][30][31][32][33], and thermal transistors [31,[34][35][36][37][38][39][40]. Also the detection of heat flows in such devices via nanoscale low-temperature thermometers [41][42][43][44] has been addressed.…”

Section: Introductionmentioning

confidence: 99%

Thermal transistor and thermometer based on Coulomb-coupled conductors

et al. 2019

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We study a three-terminal setup consisting of a single-level quantum dot capacitively coupled to a quantum point contact. The point contact connects to a source and drain reservoirs while the quantum dot is coupled to a single base reservoir. This setup has been used to implement a noninvasive, nanoscale thermometer for the bath reservoir by detecting the current in the quantum point contact. Here, we demonstrate that the device can also be operated as a thermal transistor where the average (charge and heat) current through the quantum point contact is controlled via the temperature of the base reservoir. We characterize the performances of this device both as a transistor and a thermometer, and derive the operating condition maximizing their respective sensitivities. The present analysis is useful for the control of charge and heat flow and high precision thermometry at the nanoscale. arXiv:1903.11167v1 [cond-mat.mes-hall]

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“…Electrical transistors revolutionized society and have formed the backbone of modern computing and power transmission. Thermal researchers have proposed that thermal transistors could be used in precision thermal management 25 , advanced thermal sensing and integrated control 26 , and passive thermal logic/computation in harsh climates with no available electrical power 4,27,28 .Previous researchers have computationally investigated threeterminal thermal transistors using mechanisms based on thermal radiation 25,26,[29][30][31][32][33][34] , nonlinear phonon conduction in nanoscale systems [35][36][37][38][39][40] , nanoscale confined fluids 41,42 , quantum electronic systems [43][44][45][46][47][48][49][50] , and superconducting devices 51,52 . These proposed mechanisms all involve the concept of a negative differential thermal resistance (NDTR) 35,39 ; using the terminology of a FET, NDTR refers to the regime in which increasing the gate temperature increases the heat flow from the source into the transistor at a fixed source temperature and drain temperature.…”

mentioning

confidence: 99%

“…Previous researchers have computationally investigated threeterminal thermal transistors using mechanisms based on thermal radiation 25,26,[29][30][31][32][33][34] , nonlinear phonon conduction in nanoscale systems [35][36][37][38][39][40] , nanoscale confined fluids 41,42 , quantum electronic systems [43][44][45][46][47][48][49][50] , and superconducting devices 51,52 . These proposed mechanisms all involve the concept of a negative differential thermal resistance (NDTR) 35,39 ; using the terminology of a FET, NDTR refers to the regime in which increasing the gate temperature increases the heat flow from the source into the transistor at a fixed source temperature and drain temperature.…”

mentioning

confidence: 99%

A three-terminal magnetic thermal transistor

et al. 2023

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Three-terminal thermal analogies to electrical transistors have been proposed for use in thermal amplification, thermal switching, or thermal logic, but have not yet been demonstrated experimentally. Here, we design and fabricate a three-terminal magnetic thermal transistor in which the gate temperature controls the source-drain heat flow by toggling the source-drain thermal conductance from ON to OFF. The centimeter-scale thermal transistor uses gate-temperature dependent magnetic forces to actuate motion of a thermally conducting shuttle, providing thermal contact between source and drain in the ON state while breaking contact in the OFF state. We measure source-drain thermal switch ratios of 109 ± 44 in high vacuum with gate switching temperatures near 25 °C. Thermal measurements show that small heat flows into the gate can be used to drive larger heat flows from source to drain, and that the switching is reversible over >150 cycles. Proof-of-concept thermal circuit demonstrations show that magnetic thermal transistors can enable passive or active heat flow routing or can be combined to create Boolean thermal logic gates. This work will allow thermal researchers to explore the behavior of nonlinear thermal circuits using three-terminal transistors and will motivate further research developing thermal transistors for advanced thermal control.

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Three-terminal normal-superconductor junction as thermal transistor

Cited by 6 publications

References 63 publications

A non-local cryogenic thermometer based on Coulomb-coupled systems

A non-local cryogenic thermometer based on Coulomb-coupled systems

Thermal transistor and thermometer based on Coulomb-coupled conductors

A three-terminal magnetic thermal transistor

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