Higher-order anharmonic contribution to the thermal expansion of KF at high temperatures
N M Pandya; N P Shah; N M Pandya; Phys. Dept., Univ. School of Sci., Ahmedabad, India; N P Shah; Phys. Dept., Univ. School of Sci., Ahmedabad, India
Журнал:
Journal of Physics C: Solid State Physics
Дата:
1979-01-14
Аннотация:
In this short communication results of the measurement of the thermal expansion of KF up to about its melting point are reported. An attempt is made to analyse the rapid rise in thermal expansion near the melting point in terms of higher-order anharmonic terms in the potential-energy function. It is shown that the anharmonic contribution varies exponentially with temperature.
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