|
Title
|
|
|
|
Different length scales for order parameters in two-gap superconductors : extended Ginzburg-Landau theory
|
|
|
Author
|
|
|
|
|
|
|
Abstract
|
|
|
|
| Using the Ginzburg-Landau theory extended to the next-to-leading order, we determine numerically the healing lengths of the two order parameters at the two-gap superconductor/normal metal interface. We demonstrate on several examples that those can be different even in the strict domain of applicability of the Ginzburg-Landau theory. This justifies the use of this theory to describe relevant physics of two-gap superconductors, distinguishing them from their single-gap counterparts. The calculational degree of complexity increases only slightly with respect to the conventional Ginzburg-Landau expansion, thus the extended Ginzburg-Landau model remains numerically far less demanding compared to the full microscopic approaches. |
|
|
|
Language
|
|
|
|
English
|
|
|
Source (journal)
|
|
|
|
Physical review : B : condensed matter and materials physics. - Lancaster, Pa, 1998 - 2015
|
|
|
Publication
|
|
|
|
Lancaster, Pa
:
2011
|
|
|
ISSN
|
|
|
|
1098-0121
[print]
1550-235X
[online]
|
|
|
DOI
|
|
|
|
10.1103/PHYSREVB.84.064522
|
|
|
Volume/pages
|
|
|
|
84
:6
(2011)
, p. 064522,1-064522,5
|
|
|
Article Reference
|
|
|
|
064522
|
|
|
ISI
|
|
|
|
000294226000013
|
|
|
Medium
|
|
|
|
E-only publicatie
|
|
|
Full text (Publisher's DOI)
|
|
|
|
|
|
|
Full text (open access)
|
|
|
|
|
|