LATTICE-DYNAMICS IN MIXED VALENT RARE-EARTH COMPOUNDS

被引：30

作者：

GREWE, N

ENTEL, P

机构：

[1] Institut für Theoretische Physik, Universität zu Köln, Köln 41, D-5000

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1979年 / 33卷 / 04期

关键词：

D O I：

10.1007/BF01319922

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In the frame of a single coherent picture for the electron lattice interactions in mixed valent Rare Earth compounds, the phase diagrams and phonon dispersions are studied. Our model is introduced on a microscopic level and discussed in detail. The mechanism of the phase transition and the role of the lattice is illuminated and various properties are considered in a model calculation. Anomalies in the phonon dispersions of Sm1-xYxS, which have recently been found, find a satisfying explanation. © 1979 Springer-Verlag.

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页码：331 / 340

页数：10

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