Lattice dynamics and debye-waller factor near the 195 K phase transition in RbCaF3 |
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| Authors: | M Rousseau C Ridou A Bulou |
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| Institution: | Laboratoire de Physique de l''Etat Condensé ERA No. 682, Faculté des Sciences 72017 Le Mans Cédex, France |
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| Abstract: | The experimental temperature dependence of the mean square amplitudes of atoms in RbCaF3 is compared with the theoretical values calculated from both an harmonic and a quasi rigid ion model. In the light of these results the anhamonicity of the cubic phase is discussed. |
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