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Interlayer Breathing and Shear Modes in Few-Layer Black Phosphorus
Jin-Wu Jiang, Bing-Shen Wang, Harold S. Park
The interlayer breathing and shear modes in few-layer black phosphorus are investigated for their symmetry and lattice dynamical properties. The symmetry groups for the even-layer…
A Stillinger-Weber Potential for Single-Layer Black Phosphorus, and the Importance of Cross-Pucker Interactions for Negative Poisson's Ratio and Edge Stress-Induced Bending
Jin-Wu Jiang, Timon Rabczuk, Harold S. Park
The distinguishing structural feature of single-layer black phosphorus is its puckered structure, which leads to many novel physical properties. In this work, we first present a ne…
A Review on Flexural Mode of Graphene: Lattice Dynamics, Thermal Conduction, Thermal Expansion, Elasticity, and Nanomechanical Resonance
Jin-Wu Jiang, Bing-Shen Wang, Jian-Sheng Wang +1
Single-layer graphene is so flexible that its flexural mode (also called the ZA mode, bending mode, or out-of-plane transverse acoustic mode) is important for its thermal and mecha…
Surface Shear Transformation Zones in Amorphous Solids
Penghui Cao, Xi Lin, Harold S. Park
We perform a systematic study of the characteristics of shear transformation zones (STZs) that nucleate at free surfaces of two-dimensional amorphous solids subject to tensile load…
Highly Deformable Graphene Kirigami
Zenan Qi, Harold S. Park, David K. Campbell
Graphene's exceptional mechanical properties, including its highest-known stiffness (1 TPa) and strength (100 GPa) have been exploited for various structural applications. However,…
Pseudomagnetic fields in graphene nanobubbles of constrained geometry: A molecular dynamics study
Zenan Qi, Alexander L. Kitt, Harold S. Park +3
Analysis of the strain-induced pseudomagnetic fields (PMFs) generated in graphene nanobulges under three different substrate scenarios shows that, in addition to the shape, the gra…