Multiferroic properties and structural features of <Emphasis Type="Italic">M</Emphasis>-type Al-substituted barium hexaferrites |
| |
| Authors: | A V Trukhanov S V Trukhanov V G Kostishin L V Panina M M Salem I S Kazakevich V A Turchenko V V Kochervinskii D A Krivchenya |
| |
| Institution: | 1.National University of Science and Technology MISiS,Moscow,Russia;2.Scientific and Practical Materials Research Centre,National Academy of Sciences of Belarus,Minsk,Belarus;3.Frank Neutron Physics Laboratory,Joint Nuclear Research Institute,Dubna, Moscow oblast,Russia;4.Galkin Institute for Physics and Engineering, Donetsk,Donetsk,Ukraine;5.Moscow Branch of Karpov Institute of Physical Chemistry,Moscow,Russia |
| |
| Abstract: | Precise studies of the crystal and magnetic structures of M-type substituted barium hexaferrites BaFe12–x Al x O19 (0.1 ≤ x ≤ 1.2) have been performed by powder neutron diffraction in the temperature range 300–730 K. The electric polarization and the magnetization, and also the magnetoelectric effect of the compositions under study have been studied in electric (to 110 kV/m) and magnetic (to 14 T) fields at room temperature. The spontaneous polarization and significant correlation between the dielectric and magnetic subsystems have been observed at room temperature. The magnetoelectric effect value is, on average, about 5%, and it increases slightly with the aluminum cation concentration. The precise structural studies made it possible to reveal the cause and the mechanism of formation of the spontaneous polarization in M-type substituted barium hexaferrites BaFe12–x Al x O19 (x ≤ 1.2) with a collinear ferromagnetic structure. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
