Crystal symmetry in single domains of PbZr0.54Ti0.46O3

被引：34

作者：

Schierholz, Roland ^{[1
]}

Fuess, Hartmut ^{[1
]}

Tsuda, Kenji ^{[2
]}

Ogata, Yoishiro ^{[2
]}

Terauchi, Masami ^{[2
]}

Theissmann, Ralf ^{[3
]}

机构：

[1] Tech Univ Darmstadt, Inst Mat Wissensch, D-64827 Darmstadt, Germany

[2] Tohoku Univ, IMRAM, Sendai, Miyagi 980, Japan

[3] Univ Duisburg Gesamthsch, Inst Nanostrukturtech, D-4100 Duisburg, Germany

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.78.024118

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work focuses on the crystal symmetry of morphotropic PbZrxTi1-xO3 (PZT). The crystal symmetry is investigated within single domains of approximate to 30-100 nm width by convergent beam electron diffraction (CBED). The composition PbZr0.54Ti0.46O3 was chosen for experiments at room temperature and approximate to 300 degrees C. The observed zone axis symmetry at room temperature was a ((1) over bar 10) mirror in some domains whereas symmetry was broken in neighboring domains. Therefore the highest crystal symmetry that can be attributed with certainty to the probed volume is monoclinic. The local symmetry of single cells might be lower due to disordered displacements of the cations. At approximate to 300 degrees C the zone axis symmetry had changed to a (100)(pc) mirror that only occurs in the tetragonal phase of PZT.

引用

页数：7

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