Large-scale phase separation with nano-twin domains in manganite spinel (Co,Fe,Mn){sub 3}O{sub 4}

Journal Article · Fri Aug 26 00:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4961358· OSTI ID:22608255

Takeyama, S. ^[1]; Mori, S. ^[2]

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1. Department of Materials Science and Engineering, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Kita-Kyushu, Fukuoka 804-8550 (Japan)
2. Department of Materials Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku,Sakai, Osaka 599-8531 (Japan)

The effect of Mn concentration on the formation of nano-domain structures in the spinel oxide (Co,Fe,Mn){sub 3}O{sub 4} was investigated by electron diffraction, bright-, and dark-field imaging technique with transmission electron microscopy. Large scale phase separation with nano-twin domains was observed in Co{sub 0.6}Fe{sub 1.0}Mn{sub 1.4}O{sub 4}, in contrast to the highly aligned checkerboard nano-domains in Co{sub 0.6}Fe{sub 0.9}Mn{sub 1.5}O{sub 4}. Diffusion of the Mn{sup 3+} ions with the Jahn-Teller distortions is suggested to play an important role in the formation of checkerboard nano-domain structure.

• OSTI ID: 22608255
• Journal Information: AIP Conference Proceedings, Vol. 1763, Issue 1; Conference: FMS2015: 2. international symposium on frontiers in materials science, Tokyo (Japan), 19-21 Nov 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COBALT COMPOUNDS
CONCENTRATION RATIO
DIFFUSION
DOMAIN STRUCTURE
ELECTRON DIFFRACTION
ELECTRONS
IRON COMPOUNDS
JAHN-TELLER EFFECT
MANGANESE COMPOUNDS
OXIDES
SPINELS
TRANSMISSION
TRANSMISSION ELECTRON MICROSCOPY