Springer LINK: The European Physical Journal B - Abstract Volume 4 Issue 2 (1998) pp 175-178

The European Physical Journal B

ISSN: 1434-6028 (printed version)
ISSN: 1434-6036 (electronic version)

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Abstract Volume 4 Issue 2 (1998) pp 175-178

Specific heat jump in non-Fermi superconductors

I. Tifrea (a), M. Crisan

Department of Theoretical Physics, University of Cluj, 3400 Cluj, Romania

Received: 25 January 1998 / Revised: 25 March 1998 / Accepted: 25 March 1998

Abstract: We derive the jump in the specific heat at T=T_c for a superconductor in a non-Fermi liquid model. We took into consideration the two possible limits in this problem: the spin-charge separation model for a Fermi liquid and the usual non-Fermi liquid model which satisfies the homogeneity relation for the spectral function $A(\Lambda {\bf k}$, $\Lambda\o)=\Lambda^{-1+\alpha} A({\bf k},\o$). We also derive the order parameter behavior for these two cases in the vecinity of the critical temperature.

PACS. 74.20.Mn Nonconventional mechanisms (spin fluctuations, polarons and bipolarons, resonating valence bond model, anyon mechanism, marginal Fermi liquid, Luttinger liquid, etc.) - 74.25.-q General properties; correlations between physical properties in normal and superconducting states

(a) email: tifrea@hera.ubbcluj.ro

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