Pressure-induced phase transition and stability of EuO and EuS with NaCl structure

被引：0
作者：
Atul Gour
Sadhna Singh
R. K. Singh
M. Singh
机构：
[1] Barkatullah University,Physics Department
[2] Chaudhary Devi Lal University,Institute of Professional and Scientific Studies and Research
[3] Govt. SPSPG College,MATS Tower, Pagariya Complex
[4] MATS University,undefined
来源：
Pramana | 2008年 / 71卷
关键词：
High pressure; phase transition; three-body interaction; 61.50.Ks; 61.50.Lt; 61.66.-f; 62.20; 64;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We have predicted the phase transition pressures and corresponding relative volume changes of EuO and EuS having NaCl-type structure under high pressure using three-body interaction potential (TBIP) approach. In addition, the conditions for relative stability in terms of modified Born criterion has been checked. Our calculated results of phase transitions, volume collapses and elastic behaviour of these compounds are found to be close to the experimental results. This shows that the inclusion of three-body interaction effects makes the present model suitable for high pressure studies.
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页码：181 / 186
页数：5
相关论文
共 18 条
  • [1] Jayaraman A.(1974)undefined Phys. Rev. B9 2513-undefined
  • [2] Singh A. K.(1982)undefined Phys. Rep. 85 259-undefined
  • [3] Chatterjee A.(1998)undefined Phys. Rev. B57 11164-undefined
  • [4] Usha Devi S.(1965)undefined J. Chem. Phys. 43 795-undefined
  • [5] Singh R. K.(1971)undefined Crit. Rev. Sol. St. Sci. 2 1-undefined
  • [6] Sims C. E.(1983)undefined J. Phys. C16 3409-undefined
  • [7] Barrera G. D.(1980)undefined Phys. Rev. B22 1083-undefined
  • [8] Allan N. L.(1972)undefined Phys. Stat. Sol. (b) 54 435-undefined
  • [9] Hafemeister W.(undefined)undefined undefined undefined undefined-undefined
  • [10] Flygare W. H.(undefined)undefined undefined undefined undefined-undefined
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