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 TMF, 1973, Volume 15, Number 2, Pages 280–287 (Mi tmf3666)

On the influence of pressure and a paramagnetic impurity on the superconducting properties of metals

M. E. Palistrant

Abstract: A study is made of a superconductor in which the topology of the Fermi surface changes under the influence of pressure and a paramagnetic impurity; equations are obtained for the ordering parameter $\Delta$ and the critical temperature $T_c$. It is found that $T_c$ increases nonlinearly with the parameter $\varepsilon'_F=\varepsilon_F-\varepsilon_k$ at different impurity concentrations for the case when a new part of the Fermi surface appears and that it decreases nonlinearly for the case when an open Fermi surface becomes closed. An increase in the impurity concentration smoothes the nonlinearity to some extent. The impurity contribution to $T_c$ associated with a change in the topology of the Fermi surface is important. A study is also made of the change of the critical impurity concentration with increasing $\varepsilon'_F$.

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English version:
Theoretical and Mathematical Physics, 1973, 15:2, 521–526

Citation: M. E. Palistrant, “On the influence of pressure and a paramagnetic impurity on the superconducting properties of metals”, TMF, 15:2 (1973), 280–287; Theoret. and Math. Phys., 15:2 (1973), 521–526

Citation in format AMSBIB
\Bibitem{Pal73} \by M.~E.~Palistrant \paper On the influence of pressure and a paramagnetic impurity on the superconducting properties of metals \jour TMF \yr 1973 \vol 15 \issue 2 \pages 280--287 \mathnet{http://mi.mathnet.ru/tmf3666} \transl \jour Theoret. and Math. Phys. \yr 1973 \vol 15 \issue 2 \pages 521--526 \crossref{https://doi.org/10.1007/BF01028227} 

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Citing articles on Google Scholar: Russian citations, English citations
Related articles on Google Scholar: Russian articles, English articles

This publication is cited in the following articles:
1. M. E. Palistrant, “Influence of a change in the topology of Fermi surface on the thermodynamic properties of superconductors with impurities”, Theoret. and Math. Phys., 17:2 (1973), 1157–1162
2. M. E. Palistrant, A. T. Trifan, “Thermodynamic properties of superconductors with paramagnetic impurity under pressure”, Theoret. and Math. Phys., 21:2 (1974), 1141–1154
3. M. E. Palistrant, A. T. Trifan, “Pauli paramagnetism and superconductivity under pressure”, Theoret. and Math. Phys., 29:2 (1976), 1067–1073
4. M. E. Palistrant, “Influence of the phonon spectrum on the critical temperature of a superconductor at a type $2\frac12$ phase transition”, Theoret. and Math. Phys., 33:3 (1977), 1093–1099
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