Theoretical Study of Phase Diagrams for Reentrant Superconducting 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 (X = Rh_{4}B_{4}) Alloys

• Authors: E. Gosławska , M. Matlak
• Languages of publication: EN

Abstracts

EN

We consider a simplified version of the s-f model, supplemented by the intersite Cooper pairs interaction between conduction electrons with opposite spins to investigate ferromagnetic and superconducting properties of an alloy Re_{1-x}^{(1)}Re_{x}^{(2)}X (Re^{(1),(2)} - rare earth elements, X = Rh_{4}B_{4}) using the virtual crystal approximation. 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.

Keywords

EN

75.30.Kz; 75.40.Cx

Discipline

• 75.40.Cx: Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.)
• 75.30.Kz: Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)(for ferroelectric phase transitions, see 77.80.B-; for superconductivity phase diagrams, see 74.25.Dw)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2000
• Volume: 97
• Issue: 3
• Pages: 415-418

Dates

published

2000-03

Contributors

author

E. Gosławska

• Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland

author

M. Matlak

• Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland

Identifiers

DOI

10.12693/APhysPolA.97.415