Effect of biaxial strain and hydrostatic pressure on the magnetic properties of bilayer CrI3 |
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| Authors: | Chong Xu Qian-Jun Wang Bin Xu Jun Hu |
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| Institution: | 1. School of Physical Science and Technology & Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou 215006, China2. School of Physical Science and Technology, Ningbo University, Ningbo 315211, China |
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| Abstract: | Two-dimensional van der Waals magnetic materials are intriguing for applications in the future spintronics devices, so it is crucial to explore strategy to control the magnetic properties. Here, we carried out first-principles calculations and Monte Carlo simulations to investigate the effect of biaxial strain and hydrostatic pressure on the magnetic properties of the bilayer CrI3. We found that the magnetic anisotropy, intralayer and interlayer exchange interactions, and Curie temperature can be tuned by biaxial strain and hydrostatic pressure. Large compressive biaxial strain may induce a ferromagneticto-antiferromagnetic transition of both CrI3 layers. The hydrostatic pressure could enhance the intralayer exchange interaction significantly and hence largely boost the Curie temperature. The effect of the biaxial strain and hydrostatic pressure revealed in the bilayer CrI3 may be generalized to other two-dimensional magnetic materials. |
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| Keywords: | bilayer CrI3 biaxial strain hydrostatic pressure magnetic properties |
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