Abstract
Magnetic properties of Ga-doped WS2 monolayer under strain are investigated by ab initio methods. Without strain, the Ga-doped WS2 monolayer is a magnetic nanomaterial, and the total magnetic moment is about 0.82 μB. We applied strain to Ga-doped WS2 monolayer from − 10 to 10%. The magnetic properties are modified under different strains, and a maximum magnetic moment reaches 3.09 μB at − 3% compressive strain. However, the magnetic moment of system decreases to zero sharply when compressive strain arrived at − 10%. The coupling among Ga 3d, W 5d, and S 3p states is responsible for the strong strain effect on the magnetic properties. Our studies predict Ga-doped WS2 monolayer under strain to be candidates for application in spintronics.
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The work is supported by the Shanghai Committee of Science and Technology, China (grant no. ZHT. K1507). We also thank the National Supercomputer Center in Shenzhen.
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Luo, M., Shen, Y.H. Effect of Strain on Magnetic Coupling in Ga-Doped WS2 Monolayer: Ab Initio Study. J Supercond Nov Magn 31, 1801–1805 (2018). https://doi.org/10.1007/s10948-017-4402-0
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DOI: https://doi.org/10.1007/s10948-017-4402-0