Atomic-Scale Visualization of Quantum Interference on a Weyl Semimetal Surface by Scanning Tunneling Microscopy
學年 104
學期 1
出版（發表）日期 2016-01-08
作品名稱 Atomic-Scale Visualization of Quantum Interference on a Weyl Semimetal Surface by Scanning Tunneling Microscopy
作品名稱（其他語言）
著者 Hao Zheng; Su-Yang Xu; Guang Bian; Cheng Guo; Guoqing Chang; Daniel S. Sanchez; Ilya Belopolski; Chi-Cheng Lee; Shin-Ming Huang; Xiao Zhang; Raman Sankar; Nasser Alidoust; Tay-Rong Chang; Fan Wu; Titus Neupert; Fangcheng Chou; Horng-Tay Jeng; Nan Yao; Arun Bansil; Shuang Jia, Hsin Lin; M. Zahid Hasan
單位
出版者
著錄名稱、卷期、頁數 ACS Nano 10, 1378
摘要 Weyl semimetals may open a new era in condensed matter physics, materials science, and nanotechnology after graphene and topological insulators. We report the first atomic scale view of the surface states of a Weyl semimetal (NbP) using scanning tunneling microscopy/spectroscopy. We observe coherent quantum interference patterns that arise from the scattering of quasiparticles near point defects on the surface. The measurements reveal the surface electronic structure both below and above the chemical potential in both real and reciprocal spaces. Moreover, the interference maps uncover the scattering processes of NbP’s exotic surface states. Through comparison between experimental data and theoretical calculations, we further discover that the orbital and/or spin texture of the surface bands may suppress certain scattering channels on NbP. These results provide a comprehensive understanding of electronic properties on Weyl semimetal surfaces.
關鍵字 Weyl semimetal;topological matter;scanning tunneling microscopy
語言 en_US
ISSN
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/117354 )