Tailoring magnetic properties of Cr2Te3 via selective Se substitution
Abstract
Magnetic two-dimensional (2D) heterostructures have garnered substantial attention due to their advantages in spintronic applications. However, obtaining a perfect interface is still challenging owing to unavoidable dislocations or a mismatch between different 2D magnets. In this work, a highly tunable magnetism has been achieved in Cr2Te3 via selective Se substitution, which is promising for overcoming the above issue. The magnetic ground state of Cr2(SexTe1−x)3 can be adjusted from canted-ferromagnetism (x = 0) to easy-axis collinear-ferromagnetism (x = 0.13), which is accompanied by a large coercivity of about 5800 Oe, and even to isotropic antiferromagnetism (x ≥ 0.25). First-principles calculations reveal that different ground states are mainly attributed to the variation of the interlayer exchange interaction J2. Thus, the Cr2(SexTe1−x)3, with controllable magnetism, is promising for constructing magnetic heterojunctions, where the magnetism on both sides of the interface can be flexibly tailored for diverse demands.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (15)
Wei Jiang
Zhaocong Huang
Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University 1 , Nanjing 211189,
Churen Gui
Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, School of Physics and Electronic Sciences, Changsha University of Science and Technology 2 , Changsha 410114,
Haijing Wu
Bin Lu
The University of Tokyo , , ,
Mingming Tian
Qingjie Guo
Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University 1 , Nanjing 211189,
Xingze Dai
National Key Laboratory of Spintronics, Nanjing University 1 , Suzhou 215163,
Tianyu Liu
International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics
Liang He
School of Mechanical Engineering, State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering
Jun Du
State Key Laboratory of Chemical Reaction Dynamics, Dalian Institute of Chemical Physics
Layiq Zia
Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University 1 , Nanjing 211189,
Qian Chen
Wen Zhang
Ya Zhai