摘要
Single crystals of CeMn_(0.85)Sb_(2) have been successfully synthesized by using the Bi as flux.Analysis of single crystal x-ray diffraction data confirms that CeMn_(0.85)Sb_(2) crystallizes in the HfCuSi_(2)-type structure with the space group P4/nmm(No.129).In the case of H‖c,CeMn_(0.85)Sb_(2) displays a robust antiferromagnetic transition at~160 K for Mn-sublattice,and there is no sign of magnetic order regarding Ce-sublattice.In the case of the Mn-sublattice shows signs of magnetic order at 160 K and 116 K,indicating a possible spin reorientation.There is no sign of magnetic order for the Cesublattice either,but,alternating current magnetic susceptibility measurements reveal a spin glass state below 18 K in the case of H⊥c.Isothermal magnetization curves measured below magnetic order with H⊥c show saturation and even large hysteresis at 2 K,indicating the presence of a ferromagnetic component.In addition,a field-induced spin-flop transition is observed in the case of H⊥c,indicating a field-induced spin reorientation of Mn spins.Electrical resistivity measurements indicate a metallic nature for CeMn_(0.85)Sb_(2) and large anisotropy which is consistent with its quasi-two-dimensional layered structure.
作者
李勇
苗杉杉
冯海
杨槐馨
石友国
Yong Li;Shan-Shan Miao;Hai Feng;Huai-Xin Yang;You-Guo Shi(Beijing National Laboratory for Condensed Matter Physics and Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China;Songshan Lake Materials Laboratory,Dongguan 523808,China)
基金
Project supported by the National Natural Science Foundation of China(Grant Nos.U22A6005,U2032204,and 12104492)
the Guangdong Major Scientific Research Project(Grant No.2018KZDXM061)
the National Key Research and Development Program of China(Grant No.2021YFA1400401)
the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB33010000)
the K.C.Wong Education Foundation(Grant No.GJTD-2018-01)
the Informatization Plan of Chinese Academy of Sciences(Grant No.CAS-WX2021SF0102)。
