Effect of Size Change on Mechanical Properties of Monolayer Arsenene

Abstract

The Young’s modulus, shear modulus and Poisson’s ratio of monolayer arsenene with different sizes were calculated by finite element method, so as to explore the influence of dimension and orientation on the mechanical properties of monolayer arsenene. The calculation results show that the small size has a significant effect on the mechanical properties of the monolayer arsenene. The smaller the size, the larger the Young’s modulus and Poisson’s ratio of the monolayer arsenene. The size change has a great influence on the Young’s modulus of the arsenene handrail direction, and the Young’s modulus of the zigzag direction is not sensitive to the size change. Similarly, the size change has a significant effect on the shear modulus of arsenene in the handrail direction, while the shear modulus in the zigzag direction has no significant effect on its size change. For the Poisson’s ratio, the situation is just the opposite, and the effect of the size change on the Poisson’s ratio of the arsenene zigzag direction is greater than that of the handrail direction.

Keywords

finite element method / arsenene / size change / mechanical properties

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