Structural Study of Ferroelastic CsLiSO_4 in the High-Temperature Phase
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概要
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Crystal structure of CsLiSO_4 was determined at five temperatures in the high-temperature phase on the basis of the split-atom method. It turns out that the SO_4 ion executes rotational motion between two equilibrium arrangements with equal probability. It is concluded from the temperature variation of the mean-square thermal displacement that a potential barrier of the two-site SO_4 ion is higher than the thermal energy at the phase transition temperature. This disordered structure is compared with the early reported structures.
- 1995-12-15
著者
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Itoh Kazuyuki
Department Of Biology Osaka Medical Center For Cancer And Cardiovascular Diseases
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Niwata Akira
Department Of Materials Science Faculty Of Science Hiroshima University
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