Frequency dependence of the local ac magnetic response in type-II superconductors
R. Prozorov, A. Shaulov, Y. Wolfus, Y. Yeshurun
DOI 10.1103/PhysRevB.52.12541 · 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
The local ac magnetic response in type-II superconductors is analyzed on the basis of the critical state model, taking into account magnetic relaxation effects. The results show that the frequency must be introduced as an independent parameter to the model, in addition to the shielding current which itself is a function of frequency. Using a simplified model for the relaxation law, the calculated frequency dependence of the third harmonic response compares well with experimental data obtained in a Y-Ba-Cu-O crystal. Application of this analysis to ac measurements of magnetic relaxation in the short time limit is discussed.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91.5 | Pressure not reported | onset |
Similar papers
Local Magnetic Relaxation in High-Temperature Superconductors
similarity 0.98Y. Abulafia et al.
Source status unknown — claims are unverified
High-field scaling behavior of thermodynamic and transport quantities of YBa2Cu3O7−δ near the superconducting transition
similarity 0.97U. Welp et al.
Source status unknown — claims are unverified
Temperature dependence of the upper critical field of type-II superconductors from isothermal magnetization data: Application to high-temperature superconductors
similarity 0.97I. L. Landau & H. R. Ott
Source status unknown — claims are unverified
Long-term nonlogarithmic magnetic relaxation in single-crystal YBa2Cu3O7 superconductors
similarity 0.97J. R. Thompson et al.
Source status unknown — claims are unverified
Temperature dependence of the lower critical field of high-Tc superconducting crystals near Tc
similarity 0.97F. Mrowka et al.
Source status unknown — claims are unverified
Surface and superconducting properties of cleaved high-temperature superconductors
similarity 0.97J. E. Demuth et al.
Source status unknown — claims are unverified