Time evolution of surface topography around a domain wall in ferroelectric (NH2CH2COOH)(3)center dot H2SO4

被引：8

作者：

Ohgami, J

Sugawara, Y

Morita, S

Nakamura, E

Ozaki, T

机构：

[1] OSAKA UNIV,FAC ENGN,DEPT ELECT ENGN,SUITA,OSAKA 565,JAPAN

[2] HIROSHIMA UNIV,FAC SCI,DEPT MAT SCI,HIGASHIHIROSHIMA 739,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1996年 / 35卷 / 9B期

关键词：

surface topography; time evolution; ferroelectrics; domain wall; TGS; AFM;

D O I：

10.1143/JJAP.35.5174

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Time evolution of surface topography around a domain wall was investigated on a cleaved (010) surface of ferroelectric (NH2CH2COOH)(3) . H2SO4 (TGS) using an atomic force microscope (AFM). We found the following time evolution of the surface topography during 32 hours in air at room temperature. First the migration of the domain wall induced the migration of a small step on the domain wall. The height of the small step decreased from 2-3 Angstrom to 0-1 Angstrom. Holes having a narrow and long tail extending to the domain wall were transformed. Parts of cleavage steps crossing the domain wall were also transformed. Round holes and islands with diameters smaller than similar to 100 nm shrank in size.

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页码：5174 / 5177

页数：4

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