Magnetoresistance Study of YCo6Ge6-type Dy0.4Sm0.6Mn6Ge6 Compound

作     者：汪汝武 张立刚 李亚伟 陈静 李云宝 张国宏 

作者机构：Department of Applied Physics Wuhan University of Science and Technology  2. Hubei Province Key Laboratory of Refractories and Ceramics Ministry-Province Jointly-Constructed Cultivation Base for State Key Laboratory 

出 版 物：《Journal of Rare Earths》 (稀土学报(英文版))

年 卷 期：2006年第S2期

页      面：197-199页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Project supported by the National Natural Science Foundation of China (50071041) 

主　　题：rare-earth manganese compound magnetically ordered materials magnetoresistance 

摘      要：The magnetoresistance (MR) measurements on a naturally occurring multilayer Dy0.4Sm0.6Mn6Ge6 were presented, which is ferrimagnetic below 445 K. In the temperature range below 65 K, MR displays a maximal value around 3 T and above this critical field MR decreases, in the positive direction, with fields up to 5 T. Its upturn may result from the influence of the magnetic field on the Fermi surface. It is also possible that the scattering of the conduction electrons by the nonmagnetic layers Ge becomes dominant at low temperatures.