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IJPAP Vol.46(06) [June 2008] >


Title: Structural phase transition of AgI under high pressure
Authors: Baghmar, Deoshree
Bhardwaj, Purvee
Gupta, D C
Gaur, N K
Keywords: Gibbs free energy
Phase transition
Relative volume Collapse
High pressure
Issue Date: Jun-2008
Publisher: CSIR
Abstract: The effect of high pressure over the structural stability of silver iodide (AgI) has been investigated. The structural properties of silver iodide have been calculated using Two Body Potential Model, comprising of Long-Range (L-R) Coulomb and van der Waals interactions and Short-Range (S-R) Hafemeister Flygare (HF) type overlap repulsive interactions. The phase transition pressure (Pt) and relative volume collapse Δ[V(Pt)/V(O)] as a function of pressure calculated by us for zinc-blende (B₃) and tetragonal (BT) structure are found to be in good agreement with the available experimental data.
Page(s): 417-419
ISSN: 0019-5596
Source:IJPAP Vol.46(06) [June 2008]

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