Exactly solvable model of flux creep in high-Tc superconductors
Y. L. Ma, H. F. Li, X. X. Dai
DOI 10.1103/PhysRevB.47.12304 · 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
An exactly solvable model of flux creep in high-Tc superconductors within the framework of both thermally activated and quantum-tunneling flux-creep theory is presented in this paper. The activation energy and crossover temperature between activated creep and quantum tunneling are explicitly expressed for an elastic flux line in a typical weakly periodical or quartic pinning potential involving a viscous medium. The exact analytic expression of magnetic relaxation rate is derived for the full parameter range. These expressions are somewhat better because several superconducting mechanism-sensitive parameters have been included. The present results are in reasonable agreement with the experimental data obtained in high-Tc superconductors.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Y1Ba2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
Similar papers
Superconducting-state thermal transport in YBa2Cu3O7−δ
similarity 0.96J. L. Cohn et al.
Source status unknown — claims are unverified
Linear and nonlinear conductivity of a superconductor near Tc
similarity 0.96Alan T. Dorsey
Source status unknown — claims are unverified
Superconductivity on a YBa2Cu3O7 lattice
similarity 0.96Walter A. Harrison
Source status unknown — claims are unverified
Effect of uniaxial pressure on the superconducting transition in YBa2Cu3O7
similarity 0.96Raju P. Gupta & Michèle Gupta
Source status unknown — claims are unverified
Structural properties of the superconductor LaBa2Cu3−yO7−z in the solid solution system La1+xBa2−xCu3−yO7−z
similarity 0.96Mitsuru Izumi et al.
Source status unknown — claims are unverified
Structural and dynamic properties of the magnetic order in the 90-K superconductor HoBa2Cu3O7
similarity 0.96P. Birrer et al.
Source status unknown — claims are unverified