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Phase Diagrams of the Reentrant Superconducting Re (1) 1—x Re (2) x X (X = Rh 4 B 4 ) Alloys.Application to Er 1—x Ho x X, Er 1—x Gd x X, Er 1—x Tm x X, Ho x Lu 1—x X and Sm 1—x Er x X
Author(s) -
Gosławska E.,
Matlak M.
Publication year - 1999
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/(sici)1521-3951(199912)216:2<1057::aid-pssb1057>3.0.co;2-j
Subject(s) - condensed matter physics , superconductivity , ferromagnetism , spins , phase diagram , electron , physics , phase (matter) , quantum mechanics
We consider a simplified version of the s–f model, supplemented by the intersite Cooper pair interaction between conduction electrons with opposite spins to investigate the ferromagnetic and superconducting properties of an alloy Re 1‐ x (1) Re (2) x X (Re (1) , Re (2) rare earth elements, X = Rh 4 B 4 ) using the virtual crystal approximation (VCA). For a suitable choice of the model parameters we can reproduce the phase boundaries of the experimentally measured phase diagrams for Er 1— x Ho x X, Er 1— x Gd x X, Er 1— x Tm x X, Ho x Lu 1— x X and Sm 1— x Er x X alloys.