Observation of ultrahigh mobility surface states in a topological crystalline insulator by infrared spectroscopy
Probing optical and transport properties of the surface states in topological crystalline insulators remains a challenge. Here, Wang et al. demonstrate that the far-infrared conductivity of Pb1−x Sn x Se (x = 0.23−0.25) single crystals is dominated by the surface states where carriers show a high su...
Main Authors: | , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Nature Publishing Group
2017-08-01
|
Series: | Nature Communications |
Online Access: | https://doi.org/10.1038/s41467-017-00446-2 |