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Pressure coefficient of the superconducting transition temperature: Nonadiabatic superconductivity

Sarkar, Sujit (1998) Pressure coefficient of the superconducting transition temperature: Nonadiabatic superconductivity. In: Physical Review B, 57 (18). pp. 11661-11665.

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Abstract

The pressure coefficient of the superconducting transition temperature $\beta$ has been studied in the nonadiabatic limit. We have considered the effect of nonadiabaticity both within and beyond the Migdal-Eliashberg formalism. It is revealed from our study that the pressure coefficient of the superconducting transition temperature is high for the low-$T_c$ region and low for the high-$T_c$ region. The behavior of $\beta$ is qualitatively consistent with the experimental findings of hole-doped superconductors for small values of momentum exchange between electrons and bosonic field.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to The American Physical Society.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 08 Jan 2007
Last Modified: 19 Sep 2010 04:33
URI: http://eprints.iisc.ernet.in/id/eprint/9339

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