Journal
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume 247, Issue 4, Pages 870-876Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.200945390
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Funding
- National Natural Science Foundation of China [10874227, 10674161, 10874214]
- Chinese Academy of Sciences
- Ministry of Science and Technology of China
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The nature of the charge order, multiferroic features, and structural phase transitions in LuFe2O4(LuFeO3)(n) (n = 0 amd 1) materials have been extensively investigated. In situ transmission electron microscopy(TEM) investigations on LuFe2O4 (n = 0) show the presence of well-defined charge-ordered states at low temperatures that could give rise to a notable ferroelectric polarization. Measurements of the structural and physcial properties on LuFe2O4(LuFeO3)(n) (n =1) demonstrate that the interealation of the LuFeO3-block could lead to visible changes in the dielectric properties and the charge ordering (CO) features, Measurements of ferroelectric properties suggest that Mn substitution for Fe in Lu2Fe2Fe1-xMnx (0 < x < 0.86) can notably suppress the conducting leakage current and results in clear hysteresis loops in the polarization-electric field switching curves.
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