论文标题
两个阶段具有不同的域壁网络和在应变下双层石墨烯中的重入相变
Two phases with different domain wall networks and a reentrant phase transition in bilayer graphene under strain
论文作者
论文摘要
分析性的两链Frenkel-Kontorova模型用于描述其中一层双轴拉伸后双层石墨烯中的域壁网络。我们表明，在相对双轴伸长率$ 3.0 \ cdot 10^{ - 3} $的相对双轴伸长率上形成了常规的三角形域壁网络，然后以延长为3.7 \ cdot 10^-3} $ 3.7 \ cdot 10^{-3} $。预测延伸$ \ sim10^{ - 2} $的三角形域壁网络的重新进入阶段。
The analytical two-chain Frenkel-Kontorova model is used to describe domain wall networks in bilayer graphene upon biaxial stretching of one of the layers. We show that the commensurate-incommensurate phase transition leading to formation of a regular triangular domain wall network at the relative biaxial elongation of $3.0\cdot 10^{-3}$ is followed by the transition to another incommensurate phase with a striped network at the elongation of $3.7\cdot 10^{-3}$. The reentrant transition to the phase with a triangular domain wall network is predicted for the elongation $\sim10^{-2}$.
