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Microwave response of type-II superconductors at weak pinning
by B. V. Pashinsky, M. V. Feigel'man, A. V. Andreev
This Submission thread is now published as
Submission summary
| Authors (as registered SciPost users): | Anton Andreev · Mikhail Feigel'man |
| Submission information | |
|---|---|
| Preprint Link: | scipost_202301_00033v1 (pdf) |
| Date accepted: | 2023-02-15 |
| Date submitted: | 2023-01-21 17:53 |
| Submitted by: | Andreev, Anton |
| Submitted to: | SciPost Physics |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approach: | Theoretical |
Abstract
Theory of linear microwave response of thin films of type-II superconductors in the mixed state is developed taking into account random spatial fluctuations of the parameters of the system, such as the order parameter, diffusion coefficient, or film thickness. In the regime of collective pinning the microwave response of the system exhibits strong frequency dispersion, arising from nonequilibrium vortex core quasiparticles. The corresponding contribution to the ac conductivity is controlled by the inelastic relaxation time, and may exceed the usual Bardeen-Stephen conductivity. It is caused by the Debye-type inelastic relaxation. Debye mechanism of microwave losses may be responsible for strong effects of electromagnetic noise upon dc conductivity in the mixed state at low temperatures.
Author comments upon resubmission
Dear Editors,
We thank the Referees for the prompt review of our manuscript.
In response to the Referee comments we made the following changes to the manuscript.
1) In the first paragraph on page 5 we added a discussion of the temperature dependence of the Debye contribution to the resistivity that follows from our results. The strong temperature dependence of the Debye contribution may be used as the experimental signature of the presence of this mechanism, as suggested by the first Referee.
We also discussed the limits of applicability of our results at low temperatures. This addresses the comment of the second Referee.
2) In the second paragraph on page 5 also added a comment on the possible relevance of our results to the recent experiments on superconducting films with large kinetic inductance, and added Refs. [15-19].
List of changes
1) In the first paragraph on page 5 we added a discussion of the temperature dependence of the Debye contribution to the resistivity that follows from our results. The strong temperature dependence of the Debye contribution may be used as the experimental signature of the presence of this mechanism, as suggested by the first Referee.
We also discussed the limits of applicability of our results at low temperatures. This addresses the comment of the second Referee.
2) In the second paragraph on page 5 also added a comment on the possible relevance of our results to the recent experiments on superconducting films with large kinetic inductance, and added Refs. [15-19].
Published as SciPost Phys. 14, 096 (2023)