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Self-consistent theory of anharmonic crystals containing substitutional impurities

  • Solid State Physics
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Abstract

A simple model-linear chain- of an anharmonic crystal containing substitutional impurities has been studied on the basis of the nonsymmetrized self-consistent field method. Lattice relaxation near the impurity, mean-square displacement of atoms, as well as third- and fourth-order moments of single-particle probability densities have been calculated. A formula has been obtained for the change of the free energy upon substitution of an intrinsic chain atom by an impurity atom. All the quantities have been expressed via the derivatives of interatomic potentials; this permitted explicit specification of the role of anharmonic effects.

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Authors and Affiliations

  1. Patrice Lumumba People's Friendship University, Moscow

    V. I. Zubov & Zh. N. Teisheira Rabelo

Authors
  1. V. I. Zubov
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  2. Zh. N. Teisheira Rabelo
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 12, pp. 42–45, December, 1986.

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Zubov, V.I., Teisheira Rabelo, Z.N. Self-consistent theory of anharmonic crystals containing substitutional impurities. Soviet Physics Journal 29, 987–989 (1986). https://doi.org/10.1007/BF00896000

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  • DOI: https://doi.org/10.1007/BF00896000

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