The Electrical Conductivity of Strontium-Barium Niobate

被引：6

作者：

Mahan, G. D. ^{[1
]}

Sofo, J. O. ^{[1
,2
]}

机构：

[1] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[2] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2013年 / 42卷 / 07期

关键词：

Strontium-barium niobate; figure of merit; ferroelectric; CRYSTALS; CERAMICS; SBN;

D O I：

10.1007/s11664-012-2248-6

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We propose an explanation for the high electrical conductivity of the ferroelectric strontium-barium niobate. As the temperature T approaches the ferroelectric transition T (c), the static dielectric constant diverges when a soft mode occurs. This divergence of reduces the donor binding energy, and increases the effective Bohr radius of the donor. The electrons bound to the donors become unbound, and the material becomes conductive.

引用

页码：1375 / 1376

页数：2

共 20 条

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