Pressure dependence of the dielectric properties of alkali halide crystals within the framework of the exchange-charge model
For alkali halide crystals dε{lunate}0 dp is calculated with the exchange-charge model (ECM) and various evaluations of the exchange-charge parameter D and dD dV. The effect of using the effective ionic charge Zes and its volume derivative (d In s/d In V) obtained from experimental data is studied....
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| Autores principales: | , |
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| Formato: | JOUR |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00223697_v50_n9_p981_Batana |
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| Sumario: | For alkali halide crystals dε{lunate}0 dp is calculated with the exchange-charge model (ECM) and various evaluations of the exchange-charge parameter D and dD dV. The effect of using the effective ionic charge Zes and its volume derivative (d In s/d In V) obtained from experimental data is studied. Comparison of these results with those of previous calculations within the ECM shows that the use of the experimental d In s/d In V gives better values of dε{lunate}0 dp for these salts. © 1989. |
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