Sarkar, Sujit (1998) Pressure coefficient of the superconducting transition temperature: Nonadiabatic superconductivity. In: Physical Review B, 57 (18). pp. 11661-11665.
Restricted to Registered users only
Download (117Kb) | Request a copy
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|
Actions (login required)