Size Effects in Ferroelectric Nanocones

被引：3

作者：

Bykov, P. I. ^{[1
]}

Suchaneck, G. ^{[2
]}

Popov, M. A. ^{[3
]}

Gerlach, G. ^{[2
]}

机构：

[1] NASc Ukraine, Inst Problems Mat Sci, UA-03680 Kiev 142, Ukraine

[2] Tech Univ Dresden, Inst Festkorperelekt, D-01062 Dresden, Germany

[3] Taras Shevchenko Univ, Radiophys Fac, UA-03127 Kiev, Ukraine

来源：

FERROELECTRICS | 2008年 / 368卷

关键词：

Nanoparticles; nanocone; depolarization field; size effects; phase digrams;

D O I：

10.1080/00150190802368362

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, we have performed for the first time a calculation of the ferroelectric size effect of cone-shaped nanoparticles (nanocones). To solve the appropriate Euler-Lagrange equations, a direct variational method was used. An approximate analytical expression for the phase transition temperature dependence on nanocone height and half-angle was derived. We have shown that the transition temperature may be higher by a factor of up to 2.5 compared to bulk materials.

引用

页码：401 / 407

页数：7

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