1. Enhanced Antiferromagnetic Phase in Metastable Self-Intercalated Cr$_{1+x}$Te$_2$ Compounds
- Author
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Conner, Clayton, Sarikhani, Ali, Volz, Theo, Vaninger, Mitchel, He, Xiaoqing, Kelley, Steven, Cook, Jacob, Sah, Avinash, Clark, John, Lucker, Hunter, Zhang, Cheng, Miceli, Paul, Hor, Yew San, Zhang, Xiaoqian, and Bian, Guang
- Subjects
Condensed Matter - Materials Science - Abstract
Magnetic transition-metal dichalcogenides (TMDs) have been of particular interest due to their unique magnetic properties and layered structure that can be promising for a wide range of spintronic applications. One of the most exciting compounds in this family of magnets is chromium telluride, Cr$_{1+x}$Te$_2$, which has shown rich magnetic phases with varied Cr concentrations. An emergent antiferromagnetic (AFM) ordering has been found in Cr$_{1.25}$Te$_2$ (equivalently, Cr$_{5}$Te$_8$), which is induced by intercalating 0.25 Cr atom per unit cell within the van der Waals (vdW) gaps of CrTe$_2$. In this work, we report an increased N\'eel Temperature ($T_\mathrm{N}$) of the AFM phase in Cr$_{1+x}$Te$_2$ by slightly reducing the concentration of Cr intercalants. Moreover, the intercalated Cr atoms form a metastable 2$\times$2 supercell structure that can be manipulated by electron beam irradiation. This work offers a promising approach to tuning magnetic and structural properties by adjusting the concentration of self-intercalated magnetic atoms., Comment: 5 figures, 1 table
- Published
- 2024