Surface impedance of superconductors with weak magnetic impurities

Details Surface impedance of superconductors with weak magnetic impurities Surface impedance of superconductors with weak magnetic impurities

2011-10-06

arxiv.org/abs/1110.1370v2

Phys. Rev. B 84, 224517 (2011)

Physics

Condensed Matter

Superconductivity

15 pages (including 3 EPS figures). Version 2: new Sec.III.C added; minor changes in presentation. Final version as published

Scientific paper

10.1103/PhysRevB.84.224517

Magnetic impurities affect the spectrum of excitations of a superconductor and thus influence its impedance. We concentrate on the dissipative part of the surface impedance. We investigate its dependence on frequency, the density and strength of magnetic impurities, and the density and temperature of quasiparticles. Even a small concentration of weak magnetic impurities significantly modifies the excitation spectrum in the vicinity of the BCS gap. Therefore, we give special attention to the absorption threshold behavior at zero temperature and to the low-frequency absorption by quasiparticles. The discrete energy states introduced at low density of magnetic impurities may serve as traps for nonequilibrium quasiparticles, reducing the absorption in some range of low radiation frequencies.

Affiliated with

Also associated with

No associations

Rating

Surface impedance of superconductors with weak magnetic impurities does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Surface impedance of superconductors with weak magnetic impurities, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface impedance of superconductors with weak magnetic impurities will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-182301