Ferroelectric domain breakdown

被引：142

作者：

Molotskii, M ^{[1
]}

Agronin, A

Urenski, P

Shvebelman, M

Rosenman, G

Rosenwaks, Y

机构：

[1] Tel Aviv Univ, Wolfson Mat Res Ctr, IL-69978 Ramat Aviv, Israel

[2] Tel Aviv Univ, Fac Engn, Dept Elect Engn Phys Elect, IL-69978 Ramat Aviv, Israel

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.90.107601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We observe a stringlike domain penetration from a ferroelectric surface deep into the crystal bulk induced by a high voltage atomic force microscope tip. The domains, which resemble channels of an electrical breakdown, nucleate under an electric field of around 10(7) V/cm at the ferroelectric surface, and grow throughout the crystal bulk where the external electric field is practically zero. A theory explaining the shape of the formed domains is presented. It shows that the driving force for the domain breakdown is the decrease of the total free energy of the system with increasing domain length.

引用

页数：4

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