论文标题
标准材料和狄拉克材料之间的分散互动以及维度的作用
Dispersive interactions between standard and Dirac materials and the role of dimensionality
论文作者
论文摘要
范德华（VDW）相互作用在短距离化学力可以忽略不计的分离处的中性物体之间起着重要的作用。这种类型的分散耦合取决于构成对象的材料的几何形状和响应特性之间的相互作用。在这里，我们研究了随机相位近似中1D，2D和3D标准材料之间的VDW相互作用，这些相互作用考虑了源自电子库仑电位的集体激发。对于具有抛物线能量分散（标准材料）和交叉线性带（DIRAC材料）的系统，获得了对特征功能和缩放定律的全面理解。通过比较量子机械和热限制VDW相互作用中热波动的发作，表明在减小的尺寸中，在较小的尺度下，热效应显着明显。
The van der Waals (vdW) interaction plays a prominent role between neutral objects at separations where short ranged chemical forces are negligible. This type of dispersive coupling is determined by the interplay between geometry and response properties of the materials making up the objects. Here, we investigate the vdW interaction between 1D, 2D, and 3D standard and Dirac materials within the Random Phase Approximation, which takes into account collective excitations originating from the electronic Coulomb potential. A comprehensive understanding of characteristic functionalities and scaling laws are obtained for systems with parabolic energy dispersion (standard materials) and crossing linear bands (Dirac materials). By comparing the quantum mechanical and thermal limits the onset of thermal fluctuations in the vdW interaction is discussed showing that thermal effects are significantly pronounced at smaller scales in reduced dimensions.
