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Exchange interaction of weakly delocalized multielectron systems

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Abstract

The polar model of a metal developed by Bogolyubov [1] is extended to the case of a group of equivalent electrons on each of the atoms that form a crystal. A procedure is suggested for treating the second-quantized Hamiltonian that includes the interconfigurational interaction with the help of the double tensor operators W иκπq . The relationship between these operators and the unitary operators aα , which act separately in the space of the spin and orbital functions, is pointed out. The conditions for the applicability of the Heisenberg model are analyzed.

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Authors and Affiliations

  1. A. M. Gor'kii Ural State University, USSR

    A. A. Sidorov

Authors
  1. A. A. Sidorov
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Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 5, pp. 80–87, May, 1973.

In conclusion I wish to thank B. V. Karpenko for the statement of this problem and for numerous consultations and discussions.

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Sidorov, A.A. Exchange interaction of weakly delocalized multielectron systems. Soviet Physics Journal 16, 658–663 (1973). https://doi.org/10.1007/BF00898804

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  • DOI: https://doi.org/10.1007/BF00898804

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