Investigations of atomic structure and bonding at domain boundaries in   bulk La0.5Eu0.2Sr0.3MnO3

doi:10.1002/pssa.200590015

CORC > 北京大学 > 化学与分子工程学院

	Investigations of atomic structure and bonding at domain boundaries in bulk La0.5Eu0.2Sr0.3MnO3
	Sun, BZ ; He, LL ; Luo, F ; Yan, CH
刊名	physica status solidi a applications and materials science
	2005
DOI	10.1002/pssa.200590015
英文摘要	Perovskite ceramic samples of bulk La0.7Sr0.3MnO3 doped with Eu are prepared by usual thermal decomposition and grinding procedure. Besides La0.7Sr0.3MnO3 rhombohedral phase, with the substitution of Eu3+ for La3+, another perovskite-based structure with orthorhombic symmetry and space group Pnma can be identified by means of electron diffraction patterns (EDP) and energy-dispersive X-ray spectroscopy (EDX). Many 120 degrees large-angle orientation domains with a three-fold rotational symmetry relationship are observed in the orthorhombic grain. According to group theory of phase transformation and matrix analyses, the 120 degrees orientation domain originates from the three-fold symmetry axis of pseudo-cubic parent phase. Meanwhile, a projected model of the domain boundary is constructed based on their orientation relationships. The distortions and arrangements of MnO6, octahedra on the domain boundary are discussed particularly. (c) 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter; SCI(E); EI; 0; EDITORIAL MATERIAL; 10; 1877-1877; 202
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/253186]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Sun, BZ,He, LL,Luo, F,et al. Investigations of atomic structure and bonding at domain boundaries in bulk La0.5Eu0.2Sr0.3MnO3[J]. physica status solidi a applications and materials science,2005.
APA	Sun, BZ,He, LL,Luo, F,&Yan, CH.(2005).Investigations of atomic structure and bonding at domain boundaries in bulk La0.5Eu0.2Sr0.3MnO3.physica status solidi a applications and materials science.
MLA	Sun, BZ,et al."Investigations of atomic structure and bonding at domain boundaries in bulk La0.5Eu0.2Sr0.3MnO3".physica status solidi a applications and materials science (2005).