METAMAGNETIC PHASE-TRANSITIONS IN FETIO3
METAMAGNETIC PHASE-TRANSITIONS IN FETIO3
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DOI：
10.1143/jpsj.51.1769
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发表时间：
1982-01-01
影响因子：
1.7
通讯作者：
WATANABE, H
中科院分区：
文献类型：
--
作者：
KATO, H;YAMADA, M;WATANABE, H
Magnetic susceptibilities and magnetization isotherms have been measured for single crystal FeTiO 3. The susceptibility parallcl to the c-axis has a large and sharp peak at T N= 58.0±0.3 K, while the perpendicular susceptibility is almost independent of temperature below T N. Magnetization isotherm at 4.2 K with fields applied along the c-axis exhibits a typical metamagnetic transition at H c= 80.3±0.1 kOe, being the first observation of metamagnetism in 3d transition metal oxides. The transition is of the first order up to about 35 K, above which it is of the second order. The experimental data are well reproduced by molecular field calculations with the best fit parameters of the anisotropy field H A= 150 kOe, the ferromagnetic intrasublattice exchange interaction of 2z 1 J 1= 28.5 K, and the antiferromagnetic intersublattice interaction of 2z 2 J 2=− 6.67 K.
