凝聚态物理
反铁磁性
铁磁性
材料科学
磁化
磁电阻
磁各向异性
磁滞
矫顽力
磁场
各向异性
物理
光学
量子力学
作者
Jin Wu,Chuan Lin Zhang,Jian Yan,Lei Chen,Lei Guo,Ting Wei Chen,Guanyin Gao,Linfeng Fei,Weiyao Zhao,Yang Chai,Rongkun Zheng
标识
DOI:10.1088/1361-648x/abaeab
摘要
We report on the growth of high-quality stoichiometric layered Cr2Se3 single crystals with metallic and noncollinear antiferromagnetic ground state using the chemical vapor transport (CVT) method. The crystals show weak ferromagnetism in the in-plane and out-of-plane directions below the Neél temperature (TN), however, the field-cooled out-of-plane magnetization at 500 Oe and 10 K (∼0.24 μB/f.u.) is approximately 15 times larger than that of the in-plane one, indicating strong c-axis easy uniaxial magnetic anisotropy, which is further supported by the in-plane and out-of-plane isothermal anisotropic magnetic hysteresis loops and the angular dependent magnetoresistance (MR). The latter also reveals a decrease of the coercive field of the crystal upon the tilting of the weak ferromagnetic easy axis away from the direction of the magnetic field. Further, the out-of-plane isothermal MR are negative below TN and show butterfly shapes for T < 10 K and couple with the magnetic hysteresis M(H) loop. These results may help researchers better understand the interplay between the weak ferromagnetism and the magnetotransport properties of 2D itinerant noncollinear antiferromagnetic systems.
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