Cooling-rate-dependent domain structures of Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals observed by contact resonance piezoresponse force microscopy

被引：12

作者：

Okino, H ^{[1
]}

Sakamoto, J ^{[1
]}

Yamamoto, T ^{[1
]}

机构：

[1] Natl Def Acad, Dept Commun Engn, Yokosuka, Kanagawa 2398686, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2004年 / 43卷 / 9B期

关键词：

piezoresponse force microscopy; domain imaging; contact resonance; relaxor ferroelectrics; dielectric property; cooling rate; PMN-PT;

D O I：

10.1143/JJAP.43.6808

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The domain structures of (001) plates of (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-PT) single crystals were observed at room temperature after 240 C thermal treatment at various cooling rates. The starting composition of the PMN-PT single crystals was x = 0.32; the dielectric constant of the single crystals exhibited a maximum at 153degreesC. Contact resonance piezoresponse force microscopy (CR-PFM) was utilized for domain imaging, because microdomain images could be obtained without domain structure degeneration. The average size of domains strongly depended on the cooling rate. The obtained domain images were approximately fingerprint patterned on a micron scale, but were fragmented by circular domains on a submicron scale. These finer circular domain structures were probably microdomains that existed in the relaxor phase and were subsequently quenched during the relaxor-to-ferroelectric phase transition.

引用

页码：6808 / 6811

页数：4

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