2021
Crystallographical and morphological changes in charge-ordering transition of RFe<inf>2</inf>O<inf>4</inf> (R: Y, Lu) investigated by transmission electron microscopy
Ferroelectrics
- ,
- ,
- ,
- ,
- ,
- Volume
- 584
- Number
- 1
- First page
- 20
- Last page
- 30
- Language
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1080/00150193.2021.1984762
Temperature dependence of charge-ordered crystal structures and domain structures in RFe2O4 (R: Y and Lu) was investigated by energy-filtered transmission electron microscopy, combined with conventional transmission electron microscopy. The presence of three-dimensional to two-dimensional charge ordering transition were observed in both YFe2O4 and LuFe2O4 on heating. Furthermore, real-space images obtained with the energy-filtered transmission electron microscopy revealed that YFe2O4 has less anisotropic nanometer-scale charge-ordered domains than LuFe2O4. These findings in RFe2O4 indicate the importance of the interchange interactions between Fe-O bilayers in addition to those within bilayers in the structural phase transitions associated with charge ordering in this system.
- Link information
- ID information
-
- DOI : 10.1080/00150193.2021.1984762
- ISSN : 0015-0193
- eISSN : 1563-5112
- SCOPUS ID : 85120946448