First-order phase transitions in quantum-mechanical tunneling models

被引：42
|
作者：
Müller-Kirsten, HJW
Park, DK
Rana, JMS
机构：
[1] Univ Kaiserslautern, Dept Phys, D-67653 Kaiserslautern, Germany
[2] Kyungnam Univ, Dept Phys, Masan 631701, South Korea
来源：
PHYSICAL REVIEW B | 1999年 / 60卷 / 09期
关键词：
D O I：
10.1103/PhysRevB.60.6662
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A criterion is derived for the determination of parameter domains of first-order phase transitions in quantum-mechanical tunneling models. The criterion is tested by application to various models, in particular to some that have been used recently to explore spin tunneling in macroscopic particles. In each case agreement is found with previously heuristically determined domains. [S0163-1829(99)08833-5].
引用
收藏
页码：6662 / 6667
页数：6
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