Room temperature multiferroic properties of single-phase (Bi0.9La0.1)FeO3-Ba(Fe0.5Nb0.5)O3 solid solution ceramics
Abstract
The crystal structure and multiferroic properties of single-phase (Bi0.9La0.1)FeO3-Ba(Fe0.5Nb0.5)O3 ceramics were investigated. The rhombohedral-type structure of 1.0(Bi0.9La0.1)FeO3) was transformed to a monoclinic-type structure for the 0.5(Bi0.9La0.1)FeO3-0.5Ba(Fe0.5Nb0.5)O3) composition. It shows the coexistence of ferroelectricity and magnetism at room temperature, represented by a high dielectric constant with ferroelectric hysteresis and clear magnetic hysteresis behavior. The authors propose that the solid solution of A and B site cations according to their ionic radii and valence state stabilized the spontaneous polarization and magnetization at room temperature.
- Publication:
-
Applied Physics Letters
- Pub Date:
- January 2007
- DOI:
- Bibcode:
- 2007ApPhL..90d2908P
- Keywords:
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- 77.84.Dy;
- 77.80.Dj;
- 75.50.Dd;
- 61.66.Fn;
- 77.22.Ch;
- 77.22.Ej;
- Niobates titanates tantalates PZT ceramics etc.;
- Domain structure;
- hysteresis;
- Nonmetallic ferromagnetic materials;
- Inorganic compounds;
- Permittivity;
- Polarization and depolarization