Magnetocapacitance effect in multiferroic BiMnO3
Abstract
We have investigated the structural, magnetic, and electric properties of ferromagnetic BiMnO3 with a highly distorted perovskite structure. At TE=750 770 K, a centrosymmetric to non-centrosymmetric structural transition takes place, which describes of the ferroelectricity in the system. The changes in the dielectric constant were induced by the magnetic ordering (TM≈100 K) as well as by the application of magnetic fields near TM. These features are attributed to the inherent coupling between the ferroelectric and ferromagnetic orders in the multiferroic system.
- Publication:
-
Physical Review B
- Pub Date:
- May 2003
- DOI:
- 10.1103/PhysRevB.67.180401
- Bibcode:
- 2003PhRvB..67r0401K
- Keywords:
-
- 75.47.Lx;
- 75.80.+q;
- 77.80.-e;
- Manganites;
- Magnetomechanical and magnetoelectric effects magnetostriction;
- Ferroelectricity and antiferroelectricity