DIELECTRIC AND THERMAL STUDIES OF THE LOW-TEMPERATURE PHASE-TRANSITION IN BACL2-CENTER-DOT-2H(2)O SINGLE-CRYSTALS

被引：5

作者：

BANERJEE, G ^{[1
]}

GHOSH, AK ^{[1
]}

DEY, PK ^{[1
]}

CHAUDHURI, BK ^{[1
]}

机构：

[1] INDIAN ASSOC CULTIVAT SCI, DEPT SOLID STATE PHYS, CALCUTTA 700032, W BENGAL, INDIA

来源：

PHASE TRANSITIONS | 1993年 / 42卷 / 3-4期

关键词：

BACL2-CENTER-DOT-2H(2)O; FERROELASTIC; HEAT CAPACITY; THERMAL EXPANSION;

D O I：

10.1080/01411599308203513

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

From specific heat, thermal expansion, and dielectric constant measurements between 150 and 300 K we have confirmed the low temperature phase transition in barium chloride dihydrate (BaCl2.2H(2)O) at 195 +/- 1 K. This transition appears to be associated with the local ordering (or displacements) of the two water molecules in the crystal. A ''pseudospin'' type model is proposed to explain the transition mechanism.

引用

页码：231 / 240

页数：10

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