Volume dependence of the effective charge of zinc-blende-type crystals

The volume dependence of the effective charge is calculated for crystals of the zinc-blende structure. The thermal effects and the experimental uncertainties in the use of the second Szigeti equation are studied. Both effects are evaluated for the pressure dependence of the dynamical effective charg...

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Bibliographic Details
Published in:The Journal of physics and chemistry of solids 1990, Vol.51 (10), p.1237-1238
Main Authors: Batana, A., Bruno, J.A.O.
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Effective charge
Exact sciences and technology
high pressure
low temperatures
Physics
Thermal properties of condensed matter
Thermal properties of crystalline solids
zinc-blende
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Summary:The volume dependence of the effective charge is calculated for crystals of the zinc-blende structure. The thermal effects and the experimental uncertainties in the use of the second Szigeti equation are studied. Both effects are evaluated for the pressure dependence of the dynamical effective charge. The volume dependence of the generalized first Szigeti equation is used to calculate the Grüneisen parameter γ t with low temperature data.
ISSN:0022-3697
1879-2553
DOI:10.1016/0022-3697(90)90107-Q