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CROSSOVER FROM 1ST-ORDER TO CONTINUOUS PHASE-TRANSITION INDUCED BY SYMMETRY-BREAKING FIELDS

被引：30
作者：
KERSZBERG, M
MUKAMEL, D
机构：
[1] Department of Nuclear Physics, Weizmann Institute of Science, Rehovot
来源：
PHYSICAL REVIEW LETTERS | 1979年 / 43卷 / 04期
关键词：
D O I：
10.1103/PhysRevLett.43.293
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The crossover from first order to continuous transition induced by a symmetry-breaking field g in an n=2 cubic model, for which a stable fixed point is not accessible, is studied. It is shown that unlike previously studied cases, the (g,T) phase diagram is rather complicated, exhibiting critical end points, tricritical, and fourth-order critical points. It is suggested that this phase diagram be studied experimentally in ferroelectric Tb2(MoO4)3 by applying uniaxial and shear stresses. © 1979 The American Physical Society.
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页码：293 / 296
页数：4
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