Bulk modulus and high pressure thermal expansion of TlCl and TlBr

被引:5
|
作者
Secco, RA [1 ]
Chen, Q
Secco, EA
Chen, J
Vaughan, MT
Zhang, JZ
Chen, G
机构
[1] Univ Western Ontario, Dept Earth Sci, London, ON N6A 5B7, Canada
[2] St Francis Xavier Univ, Dept Chem, Antigonish, NS B2G 2W5, Canada
[3] SUNY Stony Brook, Ctr High Pressure Res, Stony Brook, NY 11794 USA
[4] SUNY Stony Brook, Dept Earth & Space Sci, Stony Brook, NY 11794 USA
基金
加拿大自然科学与工程研究理事会;
关键词
thermal expansion; synchrotron radiation;
D O I
10.1016/S0038-1098(98)00258-0
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The isothermal bulk modulus, K-T and its pressure derivative, K-T', for TlCl and TlBr have been determined up to 6 GPa with energy dispersive X-ray diffraction using synchrotron radiation. Room temperature K-0T, K-0T' values for TlCl and TlBr are 16.3 GPa, 7.8 and 16.2 GPa, 7.9, respectively. Thermal expansion was measured up to 500 degrees C and both TlCl and TlBr show a rapid decrease with temperature similar to iso-structural CsCl. Thermal expansion of all three halides at 6 GPa is similar to 3.7 x 10(-5) K-1 (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:553 / 556
页数:4
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