Critical radii of ferroelectric domains for different decay processes in LiNbO3 crystals

被引：29

作者：

Kan, Yi ^{[1
]}

Lu, Xiaomei ^{[1
]}

Bo, Huifeng ^{[1
]}

Huang, Fengzhen ^{[1
]}

Wu, Xiaobo ^{[1
]}

Zhu, Jinsong ^{[1
]}

机构：

[1] Nanjing Univ, Dept Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 13期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2790475

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The LiNbO3 crystals were polarized at fixed points and characterized by means of scanning probe microscope. The growth evolution and the decay process of the fabricated domains were carefully studied. Two critical radii r(C) and R-c that determine a different decay behavior of domains were put forward, where r(C) is considered to correspond to the point when the domains just penetrate the crystal. Those domains with radius larger than r(C) could exist beyond 5 days, those between r(C) and R-c experienced a distinct metastable state before completely disappearing, while those smaller than R-c were even invisible under piezoresponse force mode.

引用

页数：3

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