Sharp increase of microwave absorption due to shaking of Josephson vortices in BiSCCO superconductor
D. Shaltiel, H.-A. Krug von Nidda, A. Loidl, B. Rosenstein, B. Ya. Shapiro, I. Shapiro, T. Tamegai, B. Bogoslavsky
DOI 10.1103/PhysRevB.77.014508 · 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 study microwave (9.36GHz) dissipation in the layered, highly anisotropic superconductors Bi2212 and Bi2223 subjected to a constant magnetic field parallel to the layers. The signal has a characteristic magnetic field dependence, increasing linearly at small fields, reaching a maximum, and decreasing at large fields. We demonstrate experimentally that the microwave absorption is strongly enhanced by application of a low frequency ac magnetic field parallel to the static field. The results are interpreted in the framework of Josephson phase electrodynamics in layered superconductors. In particular, the enhancement is explained as a result of the depinning of the Josephson vortices by the ac field shaking. The theoretical dc field dependence of the microwave absorption for Hdc⪢Hac is in good agreement with experiment. The magnitude of the microwave signal increases rapidly with the anisotropy of the superconductor.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2Ca2Cu3O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Model for low-field microwave absorption in granular type-II superconductors
similarity 0.95A. Pertile et al.
Source status unknown — claims are unverified
Irreversibility limits of the Abrikosov and Josephson flux dynamics in homogeneous and granular high-TC superconductors
similarity 0.95V. N. Vieira et al.
Source status unknown — claims are unverified
Measuring the Josephson plasma resonance in Bi2Sr2CaCu2O8 using intense coherent THz synchrotron radiation
similarity 0.95E. J. Singley et al.
Source status unknown — claims are unverified
Microwave observation of magnetic field penetration of high-Tc superconducting oxides
similarity 0.94K. Khachaturyan et al.
Source status unknown — claims are unverified
Strong-coupling effects in d-wave superconductors
similarity 0.94J. P. Carbotte & C. Jiang
Source status unknown — claims are unverified
Models for enhanced absorption in inhomogeneous superconductors
similarity 0.94Sergey V. Barabash & David Stroud
Source status unknown — claims are unverified