期刊
JOURNAL OF LOW TEMPERATURE PHYSICS
卷 161, 期 1-2, 页码 299-323出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10909-010-0205-4
关键词
Quantum phase transition; Quenched disorder; Griffiths singularities
资金
- NSF [DMR-0339147, DMR-0906566]
- Research Corporation
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0906566, GRANTS:13613724] Funding Source: National Science Foundation
In this paper, we review theoretical and experimental research on rare region effects at quantum phase transitions in disordered itinerant electron systems. After summarizing a few basic concepts about phase transitions in the presence of quenched randomness, we introduce the idea of rare regions and discuss their importance. We then analyze in detail the different phenomena that can arise at magnetic quantum phase transitions in disordered metals, including quantum Griffiths singularities, smeared phase transitions, and cluster-glass formation. For each scenario, we discuss the resulting phase diagram and summarize the behavior of various observables. We then review several recent experiments that provide examples of these rare region phenomena. We conclude by discussing limitations of current approaches and open questions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据