The experimental behaviors of the resistivity as a function of both magnetic field, rho(T)(H), and temperature, rho(H)(T), in Y-Ba-Cu-O and Bi-Sr-Ca-Cu-O high-quality samples, are interpreted by means of a phenomenological theory based on two hypotheses: (i) the irreversibility line at zero frequency is the glass-to-liquid-vortex transition, (ii) the dissipation mechanism is that found by Ambegaokar and Halperin and applied by Tinkham to high-T(c) superconductors. The results of the fits performed on the whole range of resistivity variation (five decades) give strong support to the glass model.
Giura, M., Marcon, R., Silva, E., Fastampa, R. (1992). MAGNETIC DISSIPATION IN HIGH-TC SUPERCONDUCTORS - EVIDENCE FOR A VORTEX-GLASS-TO-VORTEX-LIQUID TRANSITION. PHYSICAL REVIEW. B, CONDENSED MATTER, 46(9), 5753-5756 [10.1103/PhysRevB.46.5753].
MAGNETIC DISSIPATION IN HIGH-TC SUPERCONDUCTORS - EVIDENCE FOR A VORTEX-GLASS-TO-VORTEX-LIQUID TRANSITION
SILVA, Enrico;
1992-01-01
Abstract
The experimental behaviors of the resistivity as a function of both magnetic field, rho(T)(H), and temperature, rho(H)(T), in Y-Ba-Cu-O and Bi-Sr-Ca-Cu-O high-quality samples, are interpreted by means of a phenomenological theory based on two hypotheses: (i) the irreversibility line at zero frequency is the glass-to-liquid-vortex transition, (ii) the dissipation mechanism is that found by Ambegaokar and Halperin and applied by Tinkham to high-T(c) superconductors. The results of the fits performed on the whole range of resistivity variation (five decades) give strong support to the glass model.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
