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Thermodynamical Cross‐Relations for Superconductors at the Critical Point
Author(s) -
Grabiec B.,
Matlak M.
Publication year - 2002
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200206)231:2<297::aid-pssb297>3.0.co;2-#
Subject(s) - superconductivity , point (geometry) , critical point (mathematics) , physics , theoretical physics , condensed matter physics , mathematics , mathematical analysis , geometry
In the theoretical paper [1], Editor's Choice of the present issue of phys. stat. sol. (b), superconducting systems are investigated by using the phenomenological Landau theory of second order phase transitions. Twelve basic relations between various thermodynamical quantities are established. As a representative example, one of these formulae connecting derivatives of volume V , critical temperature T s , and order parameter x (Eq. (25) of [1]) is reproduced on the cover of this issue. The derived cross‐relations may be important for estimates of critical jumps in high‐ T c superconductors without the need to perform extremely difficult experiments. Bogdan Grabiec is a Ph. D. Student at the Theoretical Physics Department of the Silesian University, Katowice. Micha|l Matlak is Professor of Theoretical Physics in the same department. His interests are in the areas of magnetism, superconductivity, and phase transitions including the critical behaviour of the chemical potential.