Magnetic and transport properties of HfFe6Ge6-type Er1-xDyxMn6Sn6 (x = 0-0.6) compounds

被引：0

作者：

Yao, Jin-Lei ^{[1
,2
]}

Zhang, Shao-Ying ^{[1
]}

Liu, Bao-Dan ^{[1
]}

Yang, De-Ren ^{[2
]}

Yan, Mi ^{[2
]}

Wang, Ru-Wu ^{[3
]}

Zhang, Li-Gang ^{[3
]}

Shen, Bao-Gen ^{[1
]}

机构：

[1] State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China

[2] Stt. Key Lab. of Silicon Materials, Zhejiang University, Hangzhou 310027, China

[3] Department of Applied Physics, Univ. of Sci./Technology of Wuhan, Wuhan 430081, China

来源：

Journal of Alloys and Compounds | 2004年 / 375卷 / 1-2期

关键词：

Demagnetization - Ferromagnetism - Magnetic anisotropy - Magnetic moments - Magnetoresistance - Paramagnetism - Polycrystalline materials - X ray diffraction;

D O I：

暂无

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学科分类号：

摘要：

The magnetic and magnetotransport properties of polycrystalline Er 1-xDyxMn6Sn6 (x=0-0.6) compounds have been investigated in the temperature interval of 5-435K. The compounds with low Dy concentration (x=0-0.1) show ferrimagnetic and antiferromagnetic behaviors (TN=346-349K). The Dy-rich compounds (x=0.3-0.6) behave ferrimagnetically (TC=365-380K). The intermediate compounds (x=0.2-0.26) display ferrimagnetism, antiferromagnetism, re-entrant ferrimagnetism, and paramagnetism with increasing temperature. In the antiferromagnetic state (x=0-0.26), the transition from antiferromagnetism to ferrimagnetism can be induced by an applied field, and the metamagnetic transition field decreases monotonously with increasing x, such as from 15.5kOe for x=0 to 1.5kOe for x=0.26 at 253K. A large magnetoresistance (MR) effect is observed with the metamagnetic behavior, e.g. MR=-9.7% for x=0 at 125K in a field of 50kOe. It is interestingly observed that the Er1-xDy xMn6Sn6 (x=0 and 0.26) compounds display the positive MR effect in the low-temperature ferrimagnetic state, which is likely due to the scattering of the conduction electrons by the nonmagnetic Sn layers. © 2003 Elsevier B.V. All rights reserved.

引用

页码：53 / 57