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Nanofilms as quantum-engineered multiband superconductors : The Ginzburg-Landau theory

Title data

Shanenko, A. A. ; Orlova, N. V. ; Vagov, Alexei ; Milošević, M. V. ; Axt, Vollrath M. ; Peeters, F. M.:
Nanofilms as quantum-engineered multiband superconductors : The Ginzburg-Landau theory.
In: EPL. Vol. 102 (2013) Issue 2 . - Art.Nr. 27003, 6 S..
ISSN 1286-4854
DOI: https://doi.org/10.1209/0295-5075/102/27003

Project information

Project financing: Supported by the “Odysseus” Program of the Flemish Government and the Flemish Science Foundation (FWO-Vl)

Abstract in another language

Recently fabricated single-crystalline atomically flat metallic nanofilms are in fact quantum-engineered multiband superconductors. Here the multiband structure is dictated by the nanofilm thickness through the size quantization of the electron motion perpendicular to the nanofilm. This opens the unique possibility to explore superconductivity in well-controlled multi-band systems. However, a serious obstacle is the absence of a convenient and manageable theoretical tool to access new physical phenomena in such quasi–two-dimensional systems, including interplay of quantum confinement and fluctuations. Here we cover this gap and construct the appropriate multiband Ginzburg-Landau functional for nano-thin superconductors.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: superconductivity; multiband superconductor; BCS; Landau Ginzburg theory; metallic nanofilms; quasi–two-dimensional systems; nano-thin superconductors; confined systems
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III > Chair Theoretical Physics III - Univ.-Prof. Dr. Martin Axt
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 03 Nov 2017 07:01
Last Modified: 03 Nov 2017 07:01
URI: https://eref.uni-bayreuth.de/id/eprint/40257