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Critical phenomenon of the ferromagnet Cr2Te3 with strong perpendicular magnetic anisotropy

文献类型：期刊论文

作者Wang, Aina1,2; Du, Zan1,2; Meng, Fanying1,2; Rahman, Azizur2; Liu, Wei3; Fan, Jiyu4; Ma, Chunlan5; Ling, Langsheng1,6; Xi, Chuanying1,6; Ge, Min7
刊名PHYSICAL REVIEW APPLIED
出版日期2024-09-04
卷号22
ISSN号2331-7019
DOI10.1103/PhysRevApplied.22.034006
通讯作者Zhang, Lei(zhanglei@hmfl.ac.cn)
英文摘要Chromium telluride CrxTey has great potential applications in spintronics due to its intrinsic ferromagnetism and strong magnetic anisotropy. In this study, we systematically investigate magnetic properties of a ferromagnetic Cr2Te3 single crystal with strong perpendicular magnetic anisotropy (PMA). Apart from ferromagnetic-to-paramagnetic (FM-PM) transitions at TC <^> 181 K for both H//c and H//ab, other exotic magnetic behaviors are revealed, such as a field-modulated first-order transition uncovered by the anisotropic magnetization, a canted FM coupling rather than previously reported spin-glass behavior demonstrated by the ac susceptibility. Furthermore, anisotropic magnetization reveals significant PMA stronger than any other Cr-based transition metal chalcogenide, with a negligible saturation field for H//c but a distinct one up to 155 kOe for H//ab. Critical exponents beta = 0.340(5), gamma = 1.114(1), and delta = 4.504(5) are obtained for H//c, which fall between the three-dimensional (3D)-XY and 3D-Ising models indicative of anisotropic magnetic coupling. An H-T phase diagram of the Cr2Te3 single crystal is constructed for H//c, which distinguishes canted FM1, canted FM2, forced FM (FFM), and PM phases. The phase diagram indicates that the transition to the canted FM2 under lower fields is of a first-order type, which is suppressed into a second-order one by the external magnetic field. The multiple phase transitions and complex magnetic structures is suggested to derive from the competition between the intralayered superexchange (FM couplings) and the interlayered direct interaction (AFM coupling). The various magnetic configurations and strong PMA make Cr2Te3 highly promising for spintronic device applications.
WOS关键词SPIN-GLASS ; CRTE ; BEHAVIOR ; CR3TE4
资助项目National Natural Science Foundation of China[12374128] ; National Natural Science Foundation of China[12074386] ; National Natural Science Foundation of China[11874358] ; National Natural Science Foundation of China[11974181] ; National Natural Science Foundation of China[12204006] ; National Natural Science Foundation of China[12250410238] ; Alliance of International Science Organizations[ANSO-VF-2022-03] ; High Magnetic Field Laboratory of Anhui Province ; Chinese Academy of Sciences[JZHKYPT-2021-08]
WOS研究方向Physics
语种英语
WOS记录号WOS:001309701000001
出版者AMER PHYSICAL SOC
资助机构National Natural Science Foundation of China ; Alliance of International Science Organizations ; High Magnetic Field Laboratory of Anhui Province ; Chinese Academy of Sciences
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/135188]  
专题中国科学院合肥物质科学研究院
通讯作者Zhang, Lei
作者单位1.Chinese Acad Sci, Hefei Inst Phys Sci, Anhui Key Lab Low Energy Quantum Mat & Devices, High Magnet Field Lab, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Peoples R China
4.Nanjing Univ Aeronaut & Astronaut, Dept Appl Phys, Nanjing 210016, Peoples R China
5.Suzhou Univ Sci & Technol, Sch Phys Sci & Technol, Jiangsu Key Lab Micro & Nano Heat Fluid Flow Techn, Suzhou 215009, Peoples R China
6.High Magnet Field Lab Anhui Prov, Hefei 230031, Peoples R China
7.Univ Sci & Technol China, Hefei Natl Res Ctr Phys Sci Microscale, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Aina,Du, Zan,Meng, Fanying,et al. Critical phenomenon of the ferromagnet Cr2Te3 with strong perpendicular magnetic anisotropy[J]. PHYSICAL REVIEW APPLIED,2024,22.
APA Wang, Aina.,Du, Zan.,Meng, Fanying.,Rahman, Azizur.,Liu, Wei.,...&Zhang, Lei.(2024).Critical phenomenon of the ferromagnet Cr2Te3 with strong perpendicular magnetic anisotropy.PHYSICAL REVIEW APPLIED,22.
MLA Wang, Aina,et al."Critical phenomenon of the ferromagnet Cr2Te3 with strong perpendicular magnetic anisotropy".PHYSICAL REVIEW APPLIED 22(2024).

入库方式： OAI收割

来源：合肥物质科学研究院

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