Long-range adsorbate interactions mediated by two-dimensional Dirac fermions  

作　　者：王晓慧 付振国 王志刚 迟锋 张平 Xiaohui Wang;Zhen-Guo Fu;Zhigang Wang;Feng Chi;Ping Zhang(Beijing Key Laboratory of Optical Detection Technology for Oil and Gas,China University of Petroleum-Beijing,Beijing 102249,China;Institute of Applied Physics and Computational Mathematics,Beijing 100088,China;School of Electronic and Information Engineering,University of Electronic Science and Technology of China,Zhongshan Institute,Zhongshan 528400,China;School of Physics and Physical Engineering,Qufu Normal University,Qufu 273165,China)

机构地区：[1]Beijing Key Laboratory of Optical Detection Technology for Oil and Gas,China University of Petroleum-Beijing,Beijing 102249,China [2]Institute of Applied Physics and Computational Mathematics,Beijing 100088,China [3]School of Electronic and Information Engineering,University of Electronic Science and Technology of China,Zhongshan Institute,Zhongshan 528400,China [4]School of Physics and Physical Engineering,Qufu Normal University,Qufu 273165,China

出　　处：《Chinese Physics B》2023年第5期596-603,共8页中国物理B（英文版）

基　　金：the National Natural Science Foundation of China(Grant Nos.11804028 and 12175023);the Fund from the State Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum(Grant No.PRP/DX-2210)。

摘　　要：We provide here an analytical formalism to describe the indirect interaction between adsorbed atom or molecule pairs mediated by two-dimensional(2D)Dirac fermions.We show that in contrast to the case of traditional 2D electron gas,in the 2D Dirac system,the long-range interaction behaves as 1/r^(3) decaying Friedel oscillation.This analytical formalism is fully consistent with a tight-binding numerical calculation of honeycomb lattices.Our formalism is suitable for the realistic 2D Dirac materials,such as graphene and surface states of three-dimensional topological insulators.

关 键 词：GRAPHENE Green's function Dirac fermions 

分 类 号：O469[理学—凝聚态物理]