STUDY OF PHASE-TRANSITIONS IN NEW FERROELASTIC CRYSTALS [NH2(C2H5)2]2ZNCL4 AND [NH2(C2H5)2]2COCL4

被引：0
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作者：
VLOKH, OG
OLKHOVA, OM
POLOVINKO, II
SVELEBA, SA
SOSNOVSKY, TM
机构：
来源：
UKRAINSKII FIZICHESKII ZHURNAL | 1990年 / 35卷 / 09期
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中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The birefringence of [NH2(C2H5)2]2ZnCl4 crystals and temperature behaviour of the spontaneous rotation angle of optic indicatrices in adjacent domains in [NH2(C2H5)2]2ZnCl4 and [NH2(C2H5)2]2CoCl4 crystals have been investigated. It has been found that they are intrinsic ferroelastics in the temperature range of 208-323 K and undergo second order phase transition at T = 323 K. Besides, two new phase transitions have been discovered in [NH2(C2H5)2]2ZnCl4 crystals at temperatures of 208 and 156 K.
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页码：1330 / 1332
页数：3
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