High-pressure P-V relation and Grüneisen parameter for elemental strontium
NOPR - NISCAIR Online Periodicals Repository
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Title |
High-pressure P-V relation and Grüneisen parameter for elemental strontium
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Creator |
Vyas, P R
Gohel, V B Bhatt, N K Jani, A R |
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Subject |
Equations of states
Grüneisen parameter Mean-field potential Strontium |
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Description |
93-95
The functional relationship among the thermodynamical variables for a system in equilibrium, equation of state (EOS), provides an insight to the dependence of the microscopic internal structure of the material. In this regard, we have calculated static and dynamic P-V curve for divalent fcc-Sr. Vibrational contribution to the Helmholtz free energy is evaluated within recently proposed mean-field potential (MFP) approximation with the local pseudopotential. Temperature dependence of thermodynamic Grüneisen parameter (ϒth), a quantity that enters the Mie-Grüneisen form of EOS, is also obtained. Results so obtained are in good agreement with the experimental and other theoretical estimates. Use of present coupling scheme (i.e. MFP + pseudopotential) is thus justified; which has an added benefit of computational simplicity. |
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Date |
2008-10-22T09:01:14Z
2008-10-22T09:01:14Z 2007-01 |
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Type |
Article
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Identifier |
0019-5596
http://hdl.handle.net/123456789/2287 |
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Language |
en_US
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Relation |
G01L
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Publisher |
CSIR
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Source |
IJPAP Vol.45(1) [January 2007]
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