Magnetic properties of a Na-doped WS2 monolayer in the presence of an isotropic strain
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The magnetic properties of Na-doped WS2 monolayer under strain are investigated by ab initio methods. Without strain, the Na-doped WS2 monolayer is a magnetic nanomaterial and the total magnetic moment is about 1.07μB. We applied strain to Na-doped WS2 monolayer from–10% to 10%. The magnetic properties are modified under different strain; the doped system gets a maximum value of at 2.01μB 10% tensile strain and a minimum value of at 0μB–10% compressive strain. The coupling between 3p states of S and 5d states of W is responsible for the strong strain effect on the magnetic properties. Our studies predict Na-doped WS2 monolayer under strain to be candidates for application in spintronics.
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- 16.C. J. Gil, A. Pham, A. Yu, and S. Li, J. Phys.: Condens. Matter 26, 306004 (2014).Google Scholar