Publication
Title
Multiband superconductivity due to the electron-LO-phonon interaction in strontium titanate and on a / interface
Author
Abstract
In strontium titanate, the Frohlich electron - LO-phonon interaction dominates the electron response and can also provide superconductivity. Because of high LO-phonon frequencies in SrTiO3, the superconducting system is non-adiabatic. We demonstrate that the dielectric function approach is an adequate theoretical method for superconductivity in SrTiO3 and on the SrTiO3-LaAlO3 interface. The critical temperatures are calculated using realistic material parameters. The obtained critical temperatures are in line with experimental data both for bulk and interface superconductivity. The present method explains the observed multi-dome shape of the critical temperature in SrTiO3 as a function of the electron concentration due to multiband superconductivity.
Language
English
Source (journal)
Journal of superconductivity and novel magnetism. - New York, N.Y.
Publication
New York, N.Y. : 2017
ISSN
1557-1939
DOI
10.1007/S10948-016-3664-2
Volume/pages
30 :3 (2017) , p. 757-761
ISI
000395062600027
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Project info
Quantum turbulence in atomic and solid state Bose-Einstein condensates.
Quantum simulation of polaronic effects in quantum gases.
Nonlinear Transport of the Wigner Solid on a Superfluid 4He in a Quasi-One- Dimensional Channel.
Superfluidity and superconductivity in multicomponent quantum condensates.
Matching the functional properties of nanoparticles and nanowires.
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 12.04.2017
Last edited 09.10.2023
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