학술논문
Near-Field Tomography and Spectroscopy of Surface States on a Three-Dimensional Topological Insulator
Document Type
Conference
Author
Source
2019 Conference on Lasers and Electro-Optics (CLEO) Lasers and Electro-Optics (CLEO), 2019 Conference on. :1-2 May, 2019
Subject
Language
Abstract
Beside massless Dirac fermions, topological insulator surfaces can host a massive two-dimensional electron gas. Using near-field spectroscopy, we identify both of these surface states by retrieving the nanoscale dielectric function without any model assumptions. © 2019 The Author(s)