中国物理B ›› 2004, Vol. 13 ›› Issue (4): 542-545.doi: 10.1088/1009-1963/13/4/023
汪汝武1, 张立刚1, 姚金雷2, 杨德仁2, 严密2
Yao Jin-Lei (姚金雷)a, Wang Ru-Wu (汪汝武)b, Yang De-Ren (杨德仁)a, Yan Mi (严密)a, Zhang Li-Gang (张立刚)b
摘要: Magnetic transitions and magnetoresistance effect of the HfFe_6Ge_6-type Y_{0.9}La_{0.1}Mn_6Sn_6 compound have been investigated in the temperature range of 5-380K. The sample displays antiferromagnetic behaviour in the whole temperature range below Néel temperature T_N=309K. The metamagnetic transition from antiferromagnetism to ferromagnetism can be induced by an applied field. The metamagnetic transition field decreases monotonically from 2T at 5K to 0.4T at 300K. The giant magnetoresistance effect is observed with the metamagnetic behaviour, such as -10.4% at 245K under a field of 5T.
中图分类号: (Giant magnetoresistance)