Magnetic Transitions and Magnetoresistance of Y1-xDyxMn6Sn6 ( x = 0.2 and 0.3)

Chin. Phys. Lett.

2003, Vol. 20

Issue (6): 912-914 DOI:

Original Articles

Magnetic Transitions and Magnetoresistance of Y_1-xDy_xMn₆Sn₆ ( x = 0.2 and 0.3)

ZHANG Shao-Ying¹;YAO Jin-Lei^1,2;ZHANG Li-Gang³;LI Yun-Bao³;ZHAO Tong-Yun¹;SHEN Bao-Gen¹

¹State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100080 ²State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027 ³Department of Applied Physics, University of Science and Technology of Wuhan, Wuhan 430081

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ZHANG Shao-Ying, YAO Jin-Lei, ZHANG Li-Gang et al 2003 Chin. Phys. Lett. 20 912-914

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Abstract Magnetic transitions and magnetoresistance of HfFe₆Ge₆-type Y_1-xDy_xMn₆Sn₆ ( x = 0.2 and 0.3) have been investigated in the temperature range of 5-380 K. It was found that the strong exchange interaction between the Dy and Mn sublattices results in incomplete ferrimagnetism at low temperatures. At higher temperatures, the metamagnetic transition from an antiferromagnetic state to a ferrimagnetic state can be induced by a fairly small threshold field or by increasing temperature. The magnetic transition is accompanied by a large magnetoresistance effect of about -29% and -16% at 5 K for x = 0.2 and 0.3, respectively.

Keywords: 75.30.Kz 75.70.Pa 71.20.Lp

Published: 01 June 2003

PACS:	75.30.Kz	(Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))
	75.70.Pa
	71.20.Lp	(Intermetallic compounds)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2003/V20/I6/0912

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	ZHANG Shao-Ying
	YAO Jin-Lei
	ZHANG Li-Gang
	LI Yun-Bao
	ZHAO Tong-Yun
	SHEN Bao-Gen

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