Magnetic properties of Layered compounds Gd_<1-x>La_xMn_2Ge_2

概要

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We performed the measuremaents of magnetization of the pseudo ternaries Gd_<1-x>La_xMn_2Ge_2 with 0<__-x<__-0.2 in the temperature range from 4.2K to 480K in magnetic fields up to 6T. For x=0.05 and 0.06, the system shows the ferrimagnetism at high temperatures, it transforms to the antiferromagnetism at an intermediate temperature with decreasing temperature, and finally indicates a reentrant ferrimagnetism like SmMn_2Ge_2. For x>__-0.1, the system exhibits the ferrimagnetism in all ordering temperature range, accompanied by a compensation phenomenon. The compensation behavior as a function of temperature is discussed on the basis of two sublattice molecular-field model.
社団法人日本磁気学会の論文
1999-01-20