RE-取代BiFeO3 (RE = Er, Tm, Yb)的相组成和晶体结构

2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE) Pub Date : 2012-09-01 DOI:10.1109/OMEE.2012.6464823

O. Kuz, V. Handysh, Y. Prots, L. Vasylechko

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引用次数: 0

摘要

本文研究了稀土取代BiFeO3的物相和结构行为。x射线粉末衍射结果表明，稀土含量为RE = Er、Tm和Yb的Bi1−xRExFeO3体系的极性R3c相稀土含量分别不超过7、4和3 mol.%。Er和Tm部分取代BiFeO3中的Bi位降低了铁电相变r3c - pnm在30-60 K时的温度。

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Phase composition and crystal structure of the RE-substituted BiFeO3 (RE = Er, Tm, Yb)

The work deals with the study of the phase and structural behaviour of the rare-earth substituted BiFeO3. X-ray powder diffraction examinations revealed that the polar R3c phase in the Bi1−xRExFeO3 systems with RE = Er, Tm and Yb do not exceed 7, 4 and 3 mol.% of rare earth, respectively. Partial substitution of Er and Tm for the Bi sites in BiFeO3 reduce the temperature of the ferroelectric phase transition R3c-Pbnm on 30–60 K.

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2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE)

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