Ti3+ Jahn-Teller polarons and bipolarons in BaTiO3

被引：40

作者：

Köhne, S

Schirmer, OF

Hesse, H

Kool, TW

Vikhnin, V

机构：

[1] Univ Osnabruck, Fachbereich Phys, D-49069 Osnabruck, Germany

[2] Univ Amsterdam, Phys Chem Lab, NL-1018 WS Amsterdam, Netherlands

[3] AF Ioffe Inst, St Petersburg 194021, Russia

来源：

JOURNAL OF SUPERCONDUCTIVITY | 1999年 / 12卷 / 01期

关键词：

Jahn-Teller effect; polaron; Anderson localization;

D O I：

10.1023/A:1007731316635

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In high quality BaTiO3 crystals without trapping defects conduction electrons form Ti3+ polarons, their stabilization energy being caused by a Jahn-Teller effect. Depending on locally fluctuating potentials, tunable by uniaxial stress, small, intermediate, and banding electrons are identified by EPR. There are indications that also bipolarons are present.

引用

页码：193 / 195

页数：3