论文标题
黑磷的晶格动力学和弹性特性
Lattice dynamics and elastic properties of black phosphorus
论文作者
论文摘要
我们通过X射线散射散射和非弹性X射线散射的组合在实验上确定了黑磷层状晶体的晶格动力学，我们使用$ \ textit {ab ibrio} $计算合理化了我们的实验发现。从Terahertz频率的声子分散体中，我们得出了完整的单晶弹性张量，并将其与弹性模量描述的黑磷的宏观弹性响应相关联。此处获得的弹性刚度系数为黑磷和相关材料的模型（例如磷烯和黑磷纳米管）提供了重要的基准，这些模型最近出现了量子材料，揭示了纳米光子学，光珠和量子传感的巨大潜力。
We experimentally determine the lattice dynamics of black phosphorus layered crystals through a combination of x-ray diffuse scattering and inelastic x-ray scattering, and we rationalize our experimental findings using $\textit{ab initio}$ calculations. From the phonon dispersions at terahertz frequencies, we derive the full single-crystal elastic tensor and relate it to the macroscopic elastic response of black phosphorus, described by the elastic moduli. The elastic stiffness coefficients obtained here provide an important benchmark for models of black phosphorus and related materials, such as phosphorene and black phosphorus nanotubes, recently emerged quantum materials, disclosing a huge potential for nanophotonics, optoelectronics, and quantum sensing.
