Magnetic properties of Sm2(Fe1−xGax)17 compounds (x = 0–0.5)
作者： W.Z. Li , N. Tang , X.P. Zhong , J.L. Wang , Y.H. Gao
DOI: 10.1016/0925-8388(94)91107-X
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摘要: Abstract Sm 2 (Fe 1− x Ga ) 17 ( = 0–0.5) compounds were prepared by arc melting. X-ray diffraction patterns showed that all single phase with rhombohedral Th Zn -type structure. of the aligned samples alloys 0.15, 0.20 and 0.25 have uniaxial anisotropy at room temperature. The spin reorientation transition temperatures measured a superconducting quantum interference device (SQUID) magnetic balance. A tentative diagram was constructed. substitution for Fe leads to an increase in temperature lattice constants. Curie increases concentration, achieves maximum 0.2, then decreases. saturation magnetization decreases monotonically concentration. coupling constants TT RT derived using mean molecular field model. reaches 0.3 , but is almost unchanged varying .
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