Dephasing effects on backscattering of helical surface states

来源 :第十二届国际凝聚态理论与计算材料学会议(The 12th International Conference on Con | 被引量 : 0次 | 上传用户：Dalyforever

【摘要】

：

　　We analyze the dephasing effects on the backscattering behavior of the helical surface states.We show that dephasing effects can cause backscattering and de

【作者】

：

Haiwen Liu Hua Jiang Qing-feng Sun X.C.Xie

【机构】

：

InternationalCenterforQuantumMaterials,PekingUniversity,Beijing100871,ChinaDepartmentofPhysics,Sooch

【出处】

：

第十二届国际凝聚态理论与计算材料学会议(The 12th International Conference on Con

【发表日期】

：

2013年8期

【关键词】

：

Anomalous gap 3D topological insulator dephasing effects cross-section

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

　　We analyze the dephasing effects on the backscattering behavior of the helical surface states.We show that dephasing effects can cause backscattering and derive the backscattering cross-section for both short-range and long-range potentials.For the latter case,the backscattering cross-section becomes extremely large around the Dirac point.This large backscattering behavior can lead to the gap-like features found in recent experiments.

其他文献

Pseudo QP-injective modules and generalized pseudo QP-injective modules

会议

二维原子晶体的能带调控、多体效应及其器件模拟

　　针对高载流子迁移率二维狄拉克材料石墨烯和硅烯(石墨烯在硅中的类似物)没有能隙不适合做低功耗的场效应管的困境，提出了一系列打开能隙又不损失它们载流子迁移率了新的方

会议

石墨烯硅烯石墨炔MoS2能带调控器件模拟

铁电性的六边形单层冰和菱形单层冰

　　在对束缚在两个疏水层之间的单层水的分子动力学模拟中，我们发现了两种新相，即中密度的六边形单层冰(MD-HMI)和高密度的平坦的菱形单层冰(HD-fRMI)，也观察到了两种以前在文

会议

单层冰铁电性分子动力学模拟冰规则相图电场

BDI Class Topological Superconductors and Generating Entangled Spin Currents in Quantum Anomalous Ha

　　The study of the properties and applications of topological phases has been one of the most important subjects in condensed matter physics in recent years.H

会议

Interaction effect in two-dimensional Dirac fermions

　　Topological insulator(TI)is a new class of time-reversal invariant quantum phase,which is topologically distinct from the trivial band insulator.Recently du

会议

Topological insulatortwo-dimensional π-flux model

Thermal transport properties in graphene-based nanostructures

　　Recent breakthrough in fabrication of graphene and its derived nanostructures has opened the way for fundamental study of novel thermal transport phenomena

会议

GrapheneThermal TransportGreen's Function

Deformation behaviors and mechanical properties of coaxial and bias(6,0)(8,0)single-walled carbon na

　　Molecular dynamics has empolyed to study the mechanical properties of coaxial and bias(6,0)/(8,0)single-walled carbon nanotube(SWCNT)heterojunctions.It show

会议

Molecular dynamicssingle-w

小直径碳纳米线的热电性能

　　本文结合非平衡格林函数理论和分子动力学模拟探讨了三种小直径碳纳米线在室温下的热电性能。研究发现这些碳纳米线有着很低的声子热导[1]和相对较高的功率因子,所以表现

会议

碳纳米线热电性能非平衡格林函数分子动力学

一维相互作用拓扑绝缘体

　　By means of the exact diagonalization method,a one-dimensional interacting topological model is studied.We study the effect of interaction to the topologica

会议

Electronic structure and transport of carbon atom chains in GNRs

　　Graphene nanoribbon(GNR),a building block for grapheme-based nanocircuit,is a very simple but interesting physical or chemical system.The properties of a GN

会议

Dephasing effects on backscattering of helical surface states

其他学术论文