BIRCH EQUATION OF STATE FOR ALKALI-HALIDE CRYSTALS

被引：13
作者：
THOMAS, LM
SHANKER, J
机构：
[1] Institute of Basic Sciences, Department of Physics, Agra
来源：
PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1994年 / 181卷 / 02期
关键词：
D O I：
10.1002/pssb.2221810214
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The Birch equation of state (BES) derived from the theory of finite strain is used to calculate the pressure versus volume compression data at room temperature for eleven alkali halide crystals, viz. LiF, LiCl, LiBr, LiI, NaF, NaCl, NaBr, NaI, CsCl, CsBr, and CsI. These crystals can be compressed to rather high pressures without appearance of any structural phase transformation. The parameters of BES are determined from the ultrasonically measured experimental values of the bulk modulus and its first pressure derivative and the calculated values of second pressure derivative of bulk modulus derived from interionic potential models. The resulting P-V data for all the crystals compare well with the corresponding experimental values reported by Vaidya and Kennedy and by Yagi.
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收藏
页码：387 / 395
页数：9
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