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The Magnetic Properties of Ferroelectric and Ferromagnetic Ni-Cl Boracite at Low Temperature
Author(s) -
Munetaka Haida,
Kay Kohn,
H. Schmid
Publication year - 1974
Publication title -
journal of the physical society of japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 139
eISSN - 1347-4073
pISSN - 0031-9015
DOI - 10.1143/jpsj.37.1463
Subject(s) - antiferromagnetism , ferromagnetism , materials science , condensed matter physics , magnetization , magnetic moment , ferroelectricity , torque , magnetic field , physics , thermodynamics , optoelectronics , quantum mechanics , dielectric
The magnetic torque of Ni-Cl boracite single crystals was measured at 4.2-77°K in a field up to 6700 Oe. From the jump of the angular dependence of the magnetic torque, the spontaneous magnetization of the compd. at 4.2°K was calcd. as 0.72 emu/g. The temp. dependence of the torque is due to the fact that the Ni-Cl boracite is a weak ferromagnet below 9.7°K and a collinear antiferromagnet with sublattice moment in the c direction between 9.7 and 25°K

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