Showing papers on "High-temperature superconductivity published in 1979"
TL;DR: In this paper, the thermodynamics of magnetic superconductors over the whole ($T$,$H$) plane were analyzed within the context of molecular field theory and conditions for the coexistence of a long-range magnetic order (including ferromagnetic order) and superconductivity were given.
Abstract: Within the context of molecular-field theory we analyze the thermodynamics of magnetic superconductors over the whole ($T$,$H$) plane. The conditions for the coexistence of a long-range magnetic order (including ferromagnetic order) and superconductivity are given. Specific heat and static susceptibility are calculated and anomalies associated with the occurrence of a coexistence phase are observed. Good qualitative agreement with experiments is found and several predictions are made.
13 citations
TL;DR: In this article, the effect of Coqblin-Schrieffer-type interaction between conduction and rare-earth ion localized electrons on the superconducting order parameter δ of some ternary compounds is studied.
Abstract: The effect of Coqblin-Schrieffer-type interaction between conduction and rare-earth ion localized electrons on the superconducting order parameter δ of some ternary compounds is studied. A reentrant behavior of the order parameter is found. Superconductivity can be destroyed at two temperatures: at Tc1 due to thermal pair breaking, and at TC2(< Tc1), when δ = Φ, Φ being related to magnetic ordering of rare-earth ions and spin polarization of conduction electrons.
8 citations
TL;DR: In this paper, it was shown that the strong coupling limit is more appropriate and that T/sub c/ is then estimated to be of the order 1 /sup 0/K.
Abstract: A new mechanism of superconductivity in semiconductors and semimetals based on the metallic phase of the exciton was proposed by Abrikosov. He estimated the critical temperature for CuCl to be of order 100 /sup 0/K by employing the weak coupling BCS formula. It is shown here that the strong-coupling limit is more appropriate and that T/sub c/ is then estimated to be of the order 1 /sup 0/K.
2 citations