Fluctuations and criticality in quantum paraelectrics

被引：14
|
作者：
Das, Nabyendu [1 ]
Mishra, Suresh G. [1 ,2 ]
机构：
[1] Inst Phys, Bhubaneswar 751005, Orissa, India
[2] Natl Inst Sci Educ & Res, Bhubaneswar 751005, Orissa, India
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2009年 / 21卷 / 09期
关键词：
DIELECTRIC PROPERTIES; PHASE-TRANSITIONS; SRTIO3; FERROELECTRICITY; BEHAVIOR; PRESSURE; SYSTEMS; BATIO3;
D O I：
10.1088/0953-8984/21/9/095901
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The temperature dependence of the static dielectric susceptibility of a system with strongly coupled fluctuating dipoles is calculated within a self-consistent mean fluctuation field approximation. Results are qualitatively in good agreement with a quantum paraelectric SrTiO(3) in the low temperature regime. We identify this system as a gapped quantum paraelectric and suggest a possible experimental realization of a quantum critical paraelectric through the application of hydrostatic pressure or doping by impurity.
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页数：5
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