ISSN:
1573-7357
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The collective modes of charged, gapless superconductors are discussed within the framework of the Gor'kov-Eliashberg theory, and the dynamical pair-field susceptibility is calculated. The effect of the charge is to replace the characteristic oscillations (fourth sound) associated with the uncharged system by a diffusive behavior qualitatively similar to that predicted by time-dependent Ginzburg-Landau theory. For sufficiently small pair breaking, ρ≲10−3, and sufficiently close toT c, (Tc−T)/Tc≲4×10−6, a new oscillating mode appears, with ω ∝ (T c−T)1/3 q 4/3, in both charged and uncharged systems.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01141617
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