Phase Transitions in the Langbeinite-Type Mixed Crystal : (Tl, NH_4)_2Cd_2(SO_4)_3
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概要
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Dielectric and elastic measurements made on mixed crystals, [Tl_<1-x>(NH_4)_x]_2Cd_2(SO_4)_3, lead to the phase diagram of the system. The diagram is partitioned into four compositional regions according to the type of transitions as follows: (a) I→II→III→IV for 0≤x<0.05, (b) I→III→IV for 0.05<x<0.10, (c) I→III' for 0.10<x<0.90 and (d) I→II' for 0.9<x≤1.0, where I is the paraelectric phase (P2_13), II ferroelectric (P2_1), III ferroelectric (P1), IV nonpolar (P2_12_12_1), II' ferroelectric (P2_1) and III' ferroelectric (probably P1).
- 社団法人応用物理学会の論文
- 1977-10-05
著者
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Saeki Yukihiro
Department Of Applied Physics Faculty Of Engineering Tohoku University
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Ikeda Takuro
Department Of Applied Physics Faculty Engineering Tohoku University
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