Dielectric Properties and Phase Transitions in X3H(SO4)2 and X3D(SO4)2 Crystals (X: K, Rb)
1980 Volume 48 Issue 3 Pages 886-889
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1980 Volume 48 Issue 3 Pages 886-889
Dielectric constants were measured for the pseudo-hexagonal c-plates of K3H(SO4)2, Rb3H(SO4)2, and their deuterated analogues below room temperature. The dielectric constants of K3H(SO4)2 and Rb3H(SO4)2 monotonically increase with decreasing temperature down to 4.2 K showing no anomalies correspoinding to phase transitions. On the other hand, the dielectric constants of K3D(SO4)2 and Rb3D(SO4)2 show λ-type anomalies at 84 K and 71 K, respectively. The results indicate that the deuteration in these compounds promotes phase transitions in low temperature region.
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Proceedings of the Physico-Mathematical Society of Japan. 3rd Series
Proceedings of the Tokyo Mathematico-Physical Society. 2nd Series
Tokyo Sugaku-Butsurigakukwai Kiji-Gaiyo
Tokyo Sugaku-Butsurigakkwai Hokoku
Tokyo Sugaku-Butsurigaku Kwai Kiji
