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.

PDF Pressure-119.pdf Restricted to Registered users only Download (120kB) | Request a copy

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
Publication:	Physical Review B
Publisher:	The American Physical Society
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.ac.in/id/eprint/9339

Actions (login required)

View Item