IONIC MODEL FOR THE STABILITY OF THE Y-BA-CU HIGH-TEMPERATURE SUPERCONDUCTORS

被引：15

作者：

WRIGHT, NF

BUTLER, WH

机构：

[1] Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.42.4219

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structural stability of the Y-Ba-Cu high-temperature superconductors is described using a modified ionic model. The necessary and sufficient interatomic forces required for static stability within this model are determined and the resulting energy parameters are used to calculate the phonon frequencies. The best-fit parameters are determined for the different Y-Ba-Cu-O structures, and the differences in their internal forces are explained. The possibility of a three-chain material is explored. © 1990 The American Physical Society.

引用

页码：4219 / 4227

页数：9

共 41 条

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