Thermopower and thermal conductance of a superconducting quantum point contact
Abstract
We find the charge and heat currents caused by a temperature difference applied to a superconducting point contact or to a quantum point contact between a superconducting and normal conductors. Here, the results are formulated in terms of the properties of the electron scattering matrix of the quantum point contact in its normal state, and are valid at any transmission coefficient. In the low-transmission limit, the theory provides reliable results, setting the limits for the use of the popular method of the tunneling Hamiltonian.
- Authors:
-
- Yale Univ., New Haven, CT (United States)
- Publication Date:
- Research Org.:
- Yale Univ., New Haven, CT (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); ARO
- OSTI Identifier:
- 1609976
- Alternate Identifier(s):
- OSTI ID: 1546203
- Grant/Contract Number:
- FG02-08ER46482; W911NF-18-1-0212
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. B
- Additional Journal Information:
- Journal Volume: 99; Journal Issue: 13; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; materials science; physics; Josephson junctions; thermal conductivity; thermopower; transport phenomena; point contacts
Citation Formats
Pershoguba, Sergey S., and Glazman, Leonid I. Thermopower and thermal conductance of a superconducting quantum point contact. United States: N. p., 2019.
Web. doi:10.1103/physrevb.99.134514.
Pershoguba, Sergey S., & Glazman, Leonid I. Thermopower and thermal conductance of a superconducting quantum point contact. United States. https://doi.org/10.1103/physrevb.99.134514
Pershoguba, Sergey S., and Glazman, Leonid I. Thu .
"Thermopower and thermal conductance of a superconducting quantum point contact". United States. https://doi.org/10.1103/physrevb.99.134514. https://www.osti.gov/servlets/purl/1609976.
@article{osti_1609976,
title = {Thermopower and thermal conductance of a superconducting quantum point contact},
author = {Pershoguba, Sergey S. and Glazman, Leonid I.},
abstractNote = {We find the charge and heat currents caused by a temperature difference applied to a superconducting point contact or to a quantum point contact between a superconducting and normal conductors. Here, the results are formulated in terms of the properties of the electron scattering matrix of the quantum point contact in its normal state, and are valid at any transmission coefficient. In the low-transmission limit, the theory provides reliable results, setting the limits for the use of the popular method of the tunneling Hamiltonian.},
doi = {10.1103/physrevb.99.134514},
journal = {Physical Review. B},
number = 13,
volume = 99,
place = {United States},
year = {Thu Apr 18 00:00:00 EDT 2019},
month = {Thu Apr 18 00:00:00 EDT 2019}
}
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Cited by: 18 works
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Figures / Tables:
FIG. 1: (a) Geometry of a superconducting point contact: two superconducting leads $S_1$ and $S_2$ are connected via a narrow constriction X. (b) The energy dispersion of the quasiparticle excitations in the leads. At a given energy ε, both electron-like and hole-like quasiparticle branches are present. The quasiparticle states withmore »
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Works referencing / citing this record:
Mesoscopic effects in the heat conductance of superconducting-normal-superconducting and normal-superconducting junctions
journal, June 2019
- Hajiloo, Fatemeh; Hassler, Fabian; Splettstoesser, Janine
- Physical Review B, Vol. 99, Issue 23
Levitons in superconducting point contacts
journal, August 2019
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Mesoscopic effects in the heat conductance of superconducting-normal-superconducting and normal-superconducting junctions
text, January 2019
- Hajiloo, Fatemeh; Hassler, Fabian; Splettstoesser, Janine
- arXiv
Interaction-Assisted Reversal of Thermopower with Ultracold Atoms
journal, May 2021
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Landauer Formula for a Superconducting Quantum Point Contact
text, January 2019
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- arXiv
Figures / Tables found in this record:
Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.