ISSN:
1434-6036
Keywords:
PACS. 74.20.Fg BCS theory and its development – 11.10.Wx Finite-temperature field theory
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: We investigate a collective excitation (Leggett's mode) corresponding to small fluctuations of the relative phase of two condensates in two-band superconductor using the effective “phase only” action. We consider the possibility of observing Leggett's mode in MgB2 superconductor and conclude that for the known at present values of the two-band model parameters for MgB2 Leggett's mode arises above the two-particle threshold.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1140/epjb/e2002-00356-9
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