Magnetic behaviour in Dy(1-x)Mm(x)Co2 compounds.
Magnetic behaviour in Dy(1-x)Mm(x)Co2 compounds.
复制标题
Dy(1-x)Mm(x)Co2 化合物的磁性行为。
DOI：
10.1088/0953-8984/22/43/436001
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Srinivas G
中科院分区：
文献类型：
--
作者：
Srinivas G
The magnetic behaviour in Dy{sub 1-x}Mm{sub x}Co{sub 2} (x = 0, 0.1, 0.2, 0.3, 0.4, and 0.5; Mm = mischmetal) compounds is reported using temperature and field dependence of magnetization (M-T and M-H respectively) measurements. A strong composition dependent irreversibility is observed in both the M-T and M-H scans below the magnetic ordering temperature (T{sub C}). A clear change of the first-order magnetic transition of DyCo{sub 2} to a second-order one in Dy{sub 0.5}Mm{sub 0.5}Co{sub 2} is evidenced by M-T and a series of Arrott (M{sup 2} versus H/M) plots, obtained from the M-H isotherms around T{sub C}. The variation in induced moments of the Co sublattice is estimated. It is found that the Mm substitution can only lead to a considerable reduction in the T{sub C}, saturation magnetization, and Co moment. The observed behaviour of M-T and M-H plots with increasing Mm content is discussed in detail.
The magnetic behaviour in Dy{sub 1-x}Mm{sub x}Co{sub 2} (x = 0, 0.1, 0.2, 0.3, 0.4, and 0.5; Mm = mischmetal) compounds is reported using temperature and field dependence of magnetization (M-T and M-H respectively) measurements. A strong composition dependent irreversibility is observed in both the M-T and M-H scans below the magnetic ordering temperature (T{sub C}). A clear change of the first-order magnetic transition of DyCo{sub 2} to a second-order one in Dy{sub 0.5}Mm{sub 0.5}Co{sub 2} is evidenced by M-T and a series of Arrott (M{sup 2} versus H/M) plots, obtained from the M-H isotherms around T{sub C}. The variation in induced moments of the Co sublattice is estimated. It is found that the Mm substitution can only lead to a considerable reduction in the T{sub C}, saturation magnetization, and Co moment. The observed behaviour of M-T and M-H plots with increasing Mm content is discussed in detail.