Abstract
Various possible types of interband pairings in mixed valence and heavy fermion systems are investigated, using a two-band model with Kondo-type interaction. In this model, the system may develop interband singlet superconducting ordering, or electron-hole pairing of excitonic type, which induces an effectivef − d hybridization. The conditions for the realization of each of these orderings depends crucially on the dispersion of the corresponding original bands. The mutual influence of the two pairings, as well as the effect of “external” hybridization, are investigated.
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References
Overhauser, A.W., Appel, J.: Phys. Rev. B31, 193 (1985)
Soda, T.: J. Phys. Soc. Jap.55, 1728 (1986)
Brandt, N.B., Moshchalkov, V.V.: Adv. Phys.33, 373 (1984)
Lee, P.A., Rice, T.M., Serene, J.W., Smith, J.L., Wilkins, J.W.: Comm. Condensed Matter Phys.12, 99 (1986)
Czycholl, G.: Phys. Rep.143, 277 (1986)
Theory of heavy fermions and valence fluctuations. Kasuya, T., Saso, T., (eds.). Berlin, Heidelberg, New York: Springer 1985
Fetisov, E.P., Khomskii, D.I.: Solid State Commun.56, 403 (1985); Zh. Eksp. Teor. Fiz. (Sov. Phys.-JETP)92, (to appear)
Johanson, W.R., Crabtree, G.W., Edelstein, A.S., McMasters, O.D.: Phys. Rev. Lett.46, 504 (1981);
, J. Magn. Magn. Mater.31–34, 377 (1983)
Jaccard, D., Flouquet, J., Siero, J.: J. Appl. Phys.57, 3084 (1985)
d'Ambrumenil, N., Fulde, P.: J. Magn. Magn. Mater.47–48, 1 (1985)
Tesanovic, Z., Valls, O.T.: Phys. Rev. B34, 1918 (1986)
Nagaoka, Y.: Phys. Rev.138, A1112 (1964)
Abrikosov, A.A.: Physics2, 5 (1965)
Schuh, B.: Phys. Status Solidi131, 243 (1985)
Dolgov, O.V., Fetisov, E.P., Khomskii, D.I.: Pis'ma Zh. Eksp. Teor. Fiz. (Sov. Phys.-JETP Lett.)44, 342 (1986)
Steglich, H.E., Ahlheim, H., Franse, J.J.M., Grewe, N., Rainer, D., Rauchschwalbe, U.: J. Magn. Magn. Mater.52, 54 (1985);
Alexeevskii, N.E., Khomskii, D.I.: Uzp. Fiz. Nauk (Sov. Phys.-Uspekhi)147, 767 (1985)
Kopaev, Yu.V.: Trudy FIAN (Lebedev, P.N. Physical Institute proceedings), Vol. 86, p. 3 (1975); Superconductivity. Basov, N.G. (ed.) New York: Consultants Bureau 1977; High temperature superconductivity. Ginzburg, V.L., Kirshnitz, D.A. (eds.). New York, Consultants Bureau 1981
Khomskiî, D.I., Kocharyan, A.N.: Solid State Commun.18, 985 (1976);
Zh. Eksp. Teor. Fiz.71, 767 (1976) (Sov. Phys.-JETP44, 404 (1976))
Svozil, K.: TU Vienna (preprint.) November 1986
Menezes, O.L.T. de: Solid State Commun.57, 825 (1986)
Khomskiî, D.I.: In: Quantum theory of solids. Lifshits, I.M. (ed.), p. 70. Moscow: Mir Publishers 1982
Kikoin, K.A.: Zh. Eksp. Teor. Fiz. (Sov. Phys.-JETP)85, 1000 (1983)
Al'tshuler, T.S., Mironov, V.N., Khaliullin, G.G., Khomskii, D.I.: Pis'ma Zh. Eksp. Teor. Fiz.40, 28 (1984) (Sov. Phys.-JETP Lett.40, 28 (1984);
Al'tshuler, T.S., Khaliullin, G.G., Khomskii, D.I.: Zh. Eksp. Teor. Fiz. (Sov. Phys.-JETP)90, 2104 (1986)
Bychkov, Yu.A., Gorkov, L.P., Dzyaloshinskii, I.E.: Zh. Eksp. Teor. Fiz.50, 738 (1966) (Sov. Phys.-JETP23, 489 (1966))
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Dolgov, O.V., Fetisov, E.P., Khomskiî, D.I. et al. Model of interband pairing in mixed valence and heavy fermion systems. Z. Physik B - Condensed Matter 67, 63–68 (1987). https://doi.org/10.1007/BF01307308
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DOI: https://doi.org/10.1007/BF01307308