不协调层的电子态密度
Electronic Density of States for Incommensurate Layers
AI总结:
本文证明了不协调二维层结构的电子态密度在热力学极限下定义明确,并提出了一种计算不协调异质结构电子性质的新算法。
摘要:
我们证明了对于不协调二维层结构,其中布洛赫理论不适用,电子态密度(DOS)在有限簇的热力学极限下是良好定义的。此外,我们获得了一个DOS的显式表示公式,作为局部配置的积分。基于此公式,我们提出了一种新的算法,用于计算不协调异质结构的电子性质,克服了传统方法中人工拉伸大超晶格并应用布洛赫理论的局限性。
英文摘要:
We prove that the electronic density of states (DOS) for 2D incommensurate layered structures, where Bloch theory does not apply, is well-defined as the thermodynamic limit of finite clusters. In addition, we obtain an explicit representation formula for the DOS as an integral over local configurations. Next, based on this representation formula, we propose a novel algorithm for computing electronic structure properties in incommensurate heterostructures, which overcomes limitations of the common approach to artificially strain a large supercell and then apply Bloch theory.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。