Is the term "type-1.5 superconductivity" warranted by Ginzburg-Landau theory?
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
It is shown that within the Ginzburg-Landau (GL) approximation the order parameters {Delta}{sub 1}(r,T) and {Delta}{sub 2}(r,T) in two-band superconductors vary on the same length scale, the difference in zero-T coherence lengths {zeta}{sub 0{nu}} {approx} {h_bar}{nu}{sub F}/{Delta}{sub {nu}}(0), {nu} = 1,2 notwithstanding. This amounts to a single physical GL parameter {kappa} and the classic GL dichotomy: {kappa} < 1/{radical}2 for type I and {kappa} > 1/{radical}2 for type II.
- Research Organization:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC02-07CH11358
- OSTI ID:
- 1032435
- Report Number(s):
- IS-J 7574
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 5 Vol. 83; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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