EFFECTS OF PRESSURE AND OF THERMAL HISTORY ON THE STRUCTURAL PHASE-TRANSITION OF KCN

被引：5
|
作者：
SCHMIDT, F
GRUBER, L
KNORR, K
机构：
[1] Institut für Physik, Universität Mainz, Mainz, W-6500
来源：
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1992年 / 87卷 / 01期
关键词：
D O I：
10.1007/BF01308267
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The cubic-noncubic structural phase transition of a KCN single crystal is studied as a function of thermal history and of hydrostatic pressure up to 2 kbar. The standard sequence of phases is cubic-monoclinic-orthorhombic on cooling and orthorhombic-cubic on heating. The monoclinic phase is also absent in first cooling runs at low pressures (p less-than-or-equal-to 250 bar). The width of the monoclinic field in p, Tphase diagram is increased in second cooling runs. The effects are discussed in terms of a martensitic transformation behaviour and random strain fields.
引用
收藏
页码：127 / 131
页数：5
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