Negative Poisson's ratios in few-layer orthorhombic arsenic from first-principles calculations
arXiv:1501.01425 · doi:10.7567/APEX.8.041801
Abstract
A material exhibiting a negative Poisson's ratio is always one of the leading topics in materials science, which is due to the potential applications in those special areas such as defence and medicine. In this letter, we demonstrate a new material, few-layer orthorhombic arsenic, also possesses the negative Poisson's ratio. For monolayer arsenic, the negative Poisson's ratio is predicted to be around -0.09, originated from the hinge-like structure within the single layer of arsenic. When the layer increases, the negative Poisson's ratio becomes more negative and finally approaches the limit at four-layer, which is very close to the bulk's value of -0.12. The underlying mechanism is proposed for this layer-dependent negative Poisson's ratio, where the internal bond lengths as well as the normal Poisson's ratio within layer play a key role. The study like ours sheds new light on the physics of negative Poisson's ratio in those hinge-like nano-materials.
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- High-Throughput Computational Screening of Two-Dimensional Semiconductors
- Negative Poisson's Ratio in 1T-Type Crystalline Two-Dimensional Transition Metal Dichalcogenides
- Negative Poisson's Ratio in Single-Layer Graphene Ribbons
- Intrinsic Negative Poisson's Ratio for Single-Layer Graphene
- Electronic and mechanical properties of few-layer borophene
- Auxetic Nanomaterials: Recent Progress and Future Development
- Four allotropes of semiconducting layered Arsenic which switch into a topological insulator via an electric field: A computational study