Volume 48, Number 1, October I 1999
|Page(s)||79 - 85|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Relaxation time of the Cooper pairs near in cuprate superconductors
Laboratorio de Bajas Temperaturas y Superconductividad Departamento de Física de la Materia Condensada Universidad de Santiago de Compostela Santiago de Compostela, E-15706 Spain
Accepted: 2 August 1999
It is first shown that the thermal fluctuation effects on the transport and on the thermodynamic observables above the superconducting transition may provide, when they are analyzed simultaneously and consistently, a powerful tool to access the relaxation time, , of the Cooper pairs with wave vector in high-temperature cuprate superconductors (HTSC). Then, we apply this procedure to optimally doped YBa2Cu3O (Y-123) crystals. It is found that in this HTSC follows, within 20% accuracy, the BCS temperature behaviour and amplitude given by .
PACS: 74.40.+k – Fluctuations (noise, chaos, nonequilibrium superconductivity, localization, etc.) / 74.72.Bk – Y-Based cuprates / 74.20.-z – Theories and models of superconducting state
© EDP Sciences, 1999
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