U-j relationship in type-II superconductors

S. Sengupta; Donglu Shi; Zuning Wang; M. E. Smith; P. J. McGinn

doi:10.1103/PhysRevB.47.5165

← Back to search

U-j relationship in type-II superconductors

S. Sengupta, Donglu Shi, Zuning Wang, M. E. Smith, P. J. McGinn

DOI 10.1103/PhysRevB.47.5165 · Physical Review B

T1

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 Anderson-Kim model has been modified in terms of the U-j relationship for high-Tc superconductors. We have obtained U-j curves by an approach based on the temperature dependence of jc. Our results are consistent with the physical picture of flux creep. Our data is obtained from magnetic-relaxation experiments on YBa2Cu3Ox single crystals with the direction of the field parallel to the c axis. The decay of magnetization was studied for both increasing and decreasing fields, used to obtain the current density.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Bi2Sr2CaCu2Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown