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research article
Relaxation time of the Cooper pairs near T-c in cuprate superconductors
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, tau(0), of the Cooper pairs with wave vector k = 0 in high-temperature cuprate superconductors (HTSC). Then, Ne apply this procedure to optimally doped YBa2Cu3O7-delta (Y-123) crystals. It is found that in this HTSC tau(0) follows, within 20% accuracy, the BCS temperature behaviour and amplitude given by tau(0) = pi h/[8k(B)(T - T-c0)].
Type
research article
Web of Science ID
WOS:000083042700013
Authors
Publication date
1999
Published in
Volume
48
Issue
1
Start page
79
End page
85
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
February 26, 2007
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