Event calendar file
Theoretical Physics Colloquium
Effect of pair-breaking on superconductivity and on persistent currents well above ${\bf T_c}$
by Prof. Ora Entin-Wohlman (Ben Gurion University, Israel)
Wednesday, December 23, 2009
from
to
(Asia/Kolkata)
at Colaba Campus ( AG-66 )
at Colaba Campus ( AG-66 )
| Description |
We consider the mesoscopic normal persistent current (PC) in a
very low-temperature superconductor with a bare transition
temperature $T_{0c}$ much smaller than the Thouless energy $E_c$. We show that in a rather broad range of pair-breaking strength, $T_{0c} \lesssim \hbar/\tau_s \lesssim E_c$, the transition temperature is renormalized to zero, but the PC is hardly affected. This may provide an explanation for the magnitude of the average PC's in the noble metals, as well as a way to determine their $T_{0c}$'s.
See also http://physics.aps.org/articles/v1/7
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| Organised by | Dr. Vikram Tripathi |
