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A quantum field theory of lattice dynamics and melting in compounds

  • Published:
Il Nuovo Cimento D

Summary

A unified theory on the lattice dynamics and the melting in compounds is presented by taking into account the Coulomb interaction. The melting temperature is determined by the mean value of the eigenfrequencies of the atoms. The theory is applied to zincblende and rock salt structure crystals.

Riassunto

Si presenta una teoria unificata sulla dinamica dei reticoli e sulla fusione nei composti considerando l’interazione di Coulomb. La temperatura di fusione è determinata dal valore medio delle autofrequenze degli atomi. Si applica la teoria alla zinco-blenda e a cristalli con struttura del tipo di sali di rocca.

Резюме

Предлагается теория динамики решетки и плавления в химических соединениях, которя учитывает кулоновское взаимодействие. Температупа плавления определяется, как средияя величина собстенных чатстот атомов. Предложенная теория применяется к кристаллам со структурой цинковой обманки и кчменной соли.

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Authors and Affiliations

  1. Nagasaki Institute of Applied Science, 851-01, Nagasaki, Japan

    T. Kitamura

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  1. T. Kitamura
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Kitamura, T. A quantum field theory of lattice dynamics and melting in compounds. Il Nuovo Cimento D 11, 1441–1449 (1989). https://doi.org/10.1007/BF02450504

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  • DOI: https://doi.org/10.1007/BF02450504

PACS 63.20

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