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Enhanced magnetization and polarization in chemically modified multiferroic (1-x)BiFeO3–xDyFeO3 solid solution.
- Source :
-
Applied Physics Letters . 4/6/2009, Vol. 94 Issue 14, p142908. 3p. 4 Graphs. - Publication Year :
- 2009
-
Abstract
- In order to develop multiferroics with large magnetization and polarization, we have prepared the (1-x)BiFeO3–xDyFeO3 (BF-DF) solid solution and systematically studied its properties. A morphotropic phase transition from rhombohedral perovskite (R3c) to orthorhombic orthoferrite (Pbnm) was found at x around 0.1. The magnetic properties of BiFeO3 were improved by the introduction of Dy3+ on the perovskite A site. Chemically modified Bi0.9Dy0.1Fe1-xTixO3+x/2 ceramics by aliovalent ionic substitution of Ti4+ for Fe3+ with excess Bi2O3 exhibit weak ferromagnetism and a typical ferroelectric hysteresis loop with a large remnant polarization of 23 μC/cm2 at room temperature and a large saturated magnetization (Ms=0.5 μB/f.u.) at 2 K. These properties entitle the BF-DF solid solution one of few multiferroic materials that exhibit both decent magnetization and electric polarization. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 94
- Issue :
- 14
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 37580289
- Full Text :
- https://doi.org/10.1063/1.3110971