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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.46 [2008] >
IJPAP Vol.46(06) [June 2008] >
| Title: | High-pressure study of Na: A mean-field potential approach |
| Authors: | Bhatt, N K
Vyas, P R
Gohel, V B
Jani, A R |
| Keywords: | Helmholtz free energy
Grüneisen parameter
Bulk modulus
High-pressure |
| Issue Date: | Jun-2008 |
| Publisher: | CSIR |
| Abstract: | Study of anharmonicity through Grüneisen parameter is carried out for elemental Na at finite temperatures and pressures. The mean-field potential (MFP) approach has been employed in conjunction with the local pseudopotential to evaluate Helmholtz free energy at elevated temperatures and pressures. The calculated pressure and temperature variation of thermodynamic Grüneisen parameter (ϒth), pressure dependence of isothermal bulk modulus (BT) and total free energy at
T = 300-K have been calculated. Results obtained are satisfactorily compared with the experimental and other first principles data. |
| Page(s): | 443-44 |
| ISSN: | 0019-5596 |
| Source: | IJPAP Vol.46(06) [June 2008]
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