Enhancement of the Critical Temperature Induced by the Quantum Size Effect in Superconducting Nanofilms

• Authors: P. Wójcik
• Languages of publication: EN

Abstracts

EN

The interplay between the quantum size effect and superconductivity in the metallic Al nanofilms has been studied with the use of the self-consistent numerical solutions of the Bogoliubov-de Gennes equations. We have shown that the critical temperature of the metallic nanofilm oscillates as a function of the nanofilm thickness. This phenomenon results from the quasi-particle energy quantization induced by the confinement of electrons in the direction perpendicular to the film. For the ultrathin nanofilms with thickness 1-2 nm we have found that the critical temperature increases up to value several times higher as compared to the one measured in the bulk.

Keywords

EN

74.78.-w; 73.61.-r; 74.78.Na

Discipline

• 74.78.-w: Superconducting films and low-dimensional structures
• 73.61.-r: Electrical properties of specific thin films(for optical properties of thin films, see 78.20.-e and 78.66.-w; for magnetic properties of thin films, see 75.70.-i)
• 74.78.Na: Mesoscopic and nanoscale systems

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 4a
• Pages: A-130-A-133

Dates

published

2014-10

Contributors

author

P. Wójcik

• AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, al. A. Mickiewicza 30, 30-059 Krakow, Poland

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Identifiers

DOI

10.12693/APhysPolA.126.A-130