Titlebook: Electron Correlations and Materials Properties; A. Gonis,N. Kioussis,M. Ciftan Book 1999 Springer Science+Business Media New York 1999 Met

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Introductory Overview and Heavy-Fermion Phenomenologyiparticles appear to have a very large effective mass, i.e., one which is hundreds of times larger than the free electron mass. Therefore these systems are often called heavy-fermion or heavy-electron systems. In the meantime research on those systems has developed into an own branch of metal physic

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Effect of Disorder in the Periodic Anderson Modelnte Carlo techniques. We have examined for the first time the disorder both in hybridization between the local f-orbitals and the conduction electrons and in the local f=site energy, using a uniform distribution. We find that the disorder in hybridization has a dramatic effect on the low-temperature

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https://doi.org/10.1007/978-3-662-64593-2 of an R ion with a large magnetic moment does not significantly influence the superconductivity. In contrast, even the presence of small concentrations of magnetic impurity ions in a conventional superconductor inhibits superconductivity by interfering with the formation of Cooper pairs.

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https://doi.org/10.1007/978-1-4615-5989-4rrelations. Additional non-standard feature is the crucial role of relativistic phenomena. The last ingredient leads, for example, to a strong orbital polarization even in strongly itinerant systems, and to a strong coupling of the spin system to the crystal lattice, both being the consequence of strong spin-orbit interaction.

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The Role of Selected f Ions in the Suppression of High-Tc Superconductivity of an R ion with a large magnetic moment does not significantly influence the superconductivity. In contrast, even the presence of small concentrations of magnetic impurity ions in a conventional superconductor inhibits superconductivity by interfering with the formation of Cooper pairs.

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