Giant magnetoresistance in Y0.9La0.1Mn6Sn6 compound

doi:10.1088/1009-1963/13/4/023

Abstract

Abstract Magnetic transitions and magnetoresistance effect of the HfFe$_6$Ge$_6$-type Y$_{0.9}$La$_{0.1}$Mn$_6$Sn$_6$ compound have been investigated in the temperature range of 5－380K. The sample displays antiferromagnetic behaviour in the whole temperature range below Néel temperature $T_{\rm N}=309$K. 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.

Keywords: rare-earth manganese compounds giant magnetoresistance metamagnetic transition

Received: 16 October 2003
Revised: 24 October 2003
Accepted manuscript online:

PACS:	75.47.De	(Giant magnetoresistance)
	75.30.Kz	(Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))
	75.50.Ee	(Antiferromagnetics)
	75.40.-s	(Critical-point effects, specific heats, short-range order)

Fund: Project supported by the State Key Programme of Basic Research of China, and the National Natural Science Foundation of China (Grant No 50171079).

Cite this article:

Yao Jin-Lei (姚金雷), Wang Ru-Wu (汪汝武), Yang De-Ren (杨德仁), Yan Mi (严密), Zhang Li-Gang (张立刚) Giant magnetoresistance in Y_0.9La_0.1Mn₆Sn₆ compound 2004 Chinese Physics 13 542

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Giant magnetoresistance in Y0.9La0.1Mn6Sn6 compound

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Giant magnetoresistance in Y_0.9La_0.1Mn₆Sn₆ compound