Dissipation and coherent effects in narrow superconducting channels
M. Amin Kayali, Vladimir G. Kogan, Valery L. Pokrovsky
DOI 10.1103/PhysRevB.71.024525 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We apply the time-dependent Ginzburg-Landau (TDGL) equations to study small ac currents of frequency ω in superconducting channels narrow on the scale of London penetration depth. We show that TDGL equations have t-dependent and spatially uniform solutions that describe the order parameter with an oscillating part of the double frequency coexisting with an ac electric field. We evaluate the Ohmic losses (related neither to the flux flow nor to the phase slips) and show that the resistivity reduction on cooling through the critical temperature Tc should behave as (Tc−T)2∕ω2. If the channel is cut out of an anisotropic material in a direction other than the principal axes, the transverse phase difference and the Josephson voltage between the channel sides are generated.
Similar papers
Current in Narrow Channels of Anisotropic Superconductors
similarity 0.90V. G. Kogan & V. L. Pokrovsky
Source status unknown — claims are unverified
Dissipation and coherent effects in narrow superconducting channels
similarity 0.90M. Amin Kayali et al. · 2004 · arXiv:cond-mat/0408215
Source status unknown — claims are unverified
Dissipation-driven dynamical topological phase transitions in two-dimensional superconductors
similarity 0.88Andrea Nava et al.
Source status unknown — claims are unverified
Instabilities of the normal state in current-biased narrow superconducting strips
similarity 0.88Yury N. Ovchinnikov et al.
Source status unknown — claims are unverified
Nonequilibrium effects in tunnel Josephson junctions
similarity 0.88E. V. Bezuglyi et al.
Source status unknown — claims are unverified
Spectrum and thermodynamic currents in one-dimensional Josephson elements
similarity 0.88A. Krichevsky et al.
Source status unknown — claims are unverified