Giant magnetoresistance in Y0.9La0.1Mn6Sn6 compound |
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| Authors: | Yao Jin-Lei Wang Ru-Wu Yang De-Ren Yan Mi and Zhang Li-Gang |
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| Affiliation: | Department of Applied Physics, University of Science and Technology of Wuhan, Wuhan 430081, China; State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | 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. |
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| Keywords: | rare-earth manganese compounds giant magnetoresistance metamagnetic transition |
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