CRYSTAL STRUCTURE AND WEAK FERROMAGNETISM OF Bi 1–x Cax Fe1–x Mnx O3 MULTIFERROICS
Abstract
The crystal structure and magnetic properties of Bi1–x Cax Fe1–x Mnx O3 (x ≤ 0.22) have been studied. It was shown that the rhombohedral (R3c) polar phase at x > 0.18 transforms into the nonpolar orthorhombic phase (Pnma). The polar phase is antiferromagnetic and metamagnetic at x < 0.1. The polar and nonpolar phases are weak ferromagnets with remnant magnetization around 0.07 emu/g (x = 0.18 and х = 0.22). Decreasing the temperature leads to the state close to antiferromagnetic.
About the Authors
I. O. Troyanchuk
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus
Belarus
Belarus
M. V. Bushinsky
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus
Belarus
Belarus
D. V. Karpinsky
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus
Belarus
Belarus
A. N. Chobot
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus
Belarus
Belarus
N. V. Tereshko
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus
Belarus
Belarus
O. S. Mantytskaya
Scientific and Practical Materials Research Centre of the National Academy of Sciences of Belarus
Belarus
Belarus
G. M. Chobot
Belarusian State Agrarian Technical University
Belarus
Belarus
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