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Bethe-ansatz solution of a model for a mixed valent impurity with two magnetic configurations: II. Numerical solution of the thermodynamic equations

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Zeitschrift für Physik B Condensed Matter

Abstract

A mixed valence impurity with two magnetic configurations of total angular momentumJ 2 andJ 1=J 2+1/2, respectively, coupled by conduction electrons with total angular momentum 1/2 via a hybridization matrix element is considered. The thermodynamic Bethe-ansatz equations derived previously are solved numerically for various values ofJ 2. Thef-level occupation, the entropy, the magnetic susceptibility and the specific heat are obtained as a function of temperature for variousf-level positions. The magnetic field dependence is also discussed in the limit of integer valence (exchange model).

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Author notes

  1. P. Schlottmann (Heisenberg fellow of the Deutsche Forschungsgemeinschaft)

    Present address: Department of Physics, Temple University, 19122, Philadelphia, USA

Authors and Affiliations

  1. Centro Atómico Bariloche and Universidad Nacional de Cuyo, 8400, Bariloche, Argentina

    A. A. Aligia (Fellowship of the Humboldt-Foundation), C. A. Balseiro (Guggenheim fellow) & C. R. Proetto

  2. Fachbereich Physik, Freie Universität Berlin, D-1000, Berlin, Germany

    A. A. Aligia (Fellowship of the Humboldt-Foundation)

  3. Department of Physics, University of California, Berkeley, California, USA

    C. A. Balseiro (Guggenheim fellow)

  4. Institut für Theoretische Physik, Universität Göttingen, Federal Republic of Germany

    P. Schlottmann (Heisenberg fellow of the Deutsche Forschungsgemeinschaft)

  5. Institut für Festkörperforschung der Kernforschungsanlage Jülich, Jülich, Federal Republic of Germany

    P. Schlottmann (Heisenberg fellow of the Deutsche Forschungsgemeinschaft)

Authors
  1. A. A. Aligia
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  2. C. A. Balseiro
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  3. C. R. Proetto
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  4. P. Schlottmann
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Supported by the CONICET, Argentina

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Aligia, A.A., Balseiro, C.A., Proetto, C.R. et al. Bethe-ansatz solution of a model for a mixed valent impurity with two magnetic configurations: II. Numerical solution of the thermodynamic equations. Z. Physik B - Condensed Matter 62, 311–317 (1986). https://doi.org/10.1007/BF01313452

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  • DOI: https://doi.org/10.1007/BF01313452

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