Direct Observation of Cationic Ordering in Double Perovskite Sr2FeReO6 Crystals
SCIE
SCOPUS
- Title
- Direct Observation of Cationic Ordering in Double Perovskite Sr2FeReO6 Crystals
- Authors
- CHOI, SI YOUNG; Jong Bong Lim; Yuichi Ikuhara; Danilo Suvorov; Jae-Ho Jeon
- Date Issued
- 2013-08
- Publisher
- CAMBRIDGE UNIV PRESS
- Abstract
- Two kinds of Sr2FeReO6 (SFRO) samples, pristine SFRO and Re-excess SFRO, were prepared and we visualized the local atomic structure in terms of cationic ordering in the prepared SFRO samples via high-angle annular dark-field (HAADF) scanning transmission electron microscopy (STEM). HAADF-STEM results demonstrated the high degree of cationic ordering maintains in both the pristine SFRO and Re-excess SFRO samples. On the other hand, defective structures such as antiphase boundary and Re-deficient phase were observed dominantly in the pristine SFRO, and thus the poor magnetic property in the pristine SFRO is attributed to those defective structures related with the frustrated Fe/Re ordering.
- Keywords
- LOW-FIELD MAGNETORESISTANCE; SR2FEMOO6 DOUBLE PEROVSKITE; ANTISITE DEFECTS; FILMS; RE; MO
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/40881
- DOI
- 10.1017/S1431927613012269
- ISSN
- 1431-9276
- Article Type
- Article
- Citation
- MICROSCOPY AND MICROANALYSIS, vol. 19, page. 25 - 28, 2013-08
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- There are no files associated with this item.
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