Some Properties of Ferromagnetoelectric Nickel-Iodine Boracite, Ni3B7O13I

Journal of Applied Physics - Tập 37 Số 3 - Trang 1404-1405 - 1966
E. Ascher1, H. Rieder1, Heinz Schmid1, H. Stössel1
1Battelle Memorial Institute, Geneva, Switzerland

Tóm tắt

Ferroelectricity and weak ferromagnetism have been found to set on simultaneously in Ni3B7O13I at about 64°K. This is evidenced by dielectric hysteresis, spontaneous Faraday effect, quadratic magnetoelectric hysteresis, etc. The strong coupling between the mutually perpendicular spontaneous polarization—[001]—and spontaneous magnetization—[110]—is such that, when the former is reversed, the latter turns by 90°. The magnetic point group is most probably m′m2′. Dielectric constant, magnetic, and magnetoelectric susceptibilities and magnetic coercive field are shown as a function of temperature.

Từ khóa


Tài liệu tham khảo

1951, Acta Cryst., 4, 310, 10.1107/S0365110X51001033

1964, Solid State Commun., 2, 45, 10.1016/0038-1098(64)90571-X

1965, Solid State Commun., 3, 327, 10.1016/0038-1098(65)90088-8

1965, J. Phys. Chem. Solids, 26, 973, 10.1016/0022-3697(65)90185-X

1961, Phys. Rev. Letters, 7, 310, 10.1103/PhysRevLett.7.310

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Journal of Applied Physics

Tập 37 Số 3

1404-1405

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