Analysis of the pressure derivatives of the second order elastic constants in alkaline earth oxides |
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| Authors: | S.C. Goyal S.P. Tripathi |
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| Affiliation: | Department of Physics, Agra College, Agra 282 002, India;Department of Physics, St. John''s College, Agra 282 002, India |
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| Abstract: | The three body force shell model (TSM) has been applied to evaluate the magnitude of the pressure derivatives of second order elastic constants of alkaline earth oxides and a good agreement with the experimental values has been obtained. It is also pointed out that the calculated values of dC44?dp show a smooth variation with ionicities. The theory has been modified by taking into account next nearest neighbour interaction. |
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