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Thermal transistor and thermometer based on Coulomb-coupled conductors

Journal Article · · Physical Review. B
 [1];  [2];  [3];  [4];  [5];  [6]
  1. Univ. of Rochester, NY (United States); DOE/OSTI
  2. Univ. of Rochester, NY (United States)
  3. Chalmers University of Technology, Gothenburg (Sweden)
  4. Univ. Duisburg-Essen and CENIDE (Germany)
  5. Univ. Autónoma de Madrid (Spain)
  6. Univ. of Rochester, NY (United States); Chapman Univ., Orange, CA (United States)
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 reservoir 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. Furthermore, the present analysis is useful for the control of charge and heat flow and high precision thermometry at the nanoscale.
Research Organization:
Univ. of Rochester, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0017890
OSTI ID:
1612777
Alternate ID(s):
OSTI ID: 1545450
OSTI ID: 2222817
Journal Information:
Physical Review. B, Journal Name: Physical Review. B Journal Issue: 4 Vol. 100; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (9)

Stochastic thermodynamic cycles of a mesoscopic thermoelectric engine journal February 2021
The NH2-terminus of substance P modulates NMDA-induced activity in the mouse spinal cord journal May 1994
Phase-coherent heat circulators with normal or superconducting contacts text January 2021
Thermodynamics of a phase-driven proximity Josephson junction text January 2019
Brownian thermal transistors and refrigerators in mesoscopic systems text January 2020
A non-local cryogenic thermometer based on Coulomb-coupled systems text January 2020
Comparative study of heat-driven and power-driven refrigerators with Coulomb-coupled quantum dots journal November 2019
Thermodynamics of a Phase-Driven Proximity Josephson Junction journal October 2019
Comparative study of heat-driven and power-driven refrigerators with Coulomb-coupled quantum dots text January 2019

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