Article ID Journal Published Year Pages File Type
5450136 Physica E: Low-dimensional Systems and Nanostructures 2017 18 Pages PDF
Abstract
We study the effect of strain on electronic and magnetic properties of Ni-doped monolayer WSe2 by using a method of plane wave potential technique based on the density function theory. We find that Ni-doped monolayer WSe2 becomes a magnetic metal material, and the magnetic moment is 1.466 μB. When we apply different compressive strain, Ni-doped WSe2 shows half-metallic from magnetic properties firstly. With increasing compressive strain, Ni-doped WSe2 shows magnetic metal properties from −8% to −10%. The magnetic moment also increases firstly and then decreases with increasing compressive strains, the biggest magnetic moment is 3.280 μB at −3% compressive strain and the minimum magnetic moment is 0.658μB at −10% compressive strain. While, the magnetic moment increases slowly with increasing tensile strain and comes to 1.812μB at 10% tensile strain. By comparison, we find that there is stronger effect of compressive strain on electronic and magnetic properties of this doped system than that of tensile strain.
Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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