Experimental Realization of a Three-Dimensional Topological Insulator Phase in Ternary Chalcogenide TlBiSe2
Year: 2010
Type: article
Abstract: We report the first observation of a topological surface state on the (111) surface of the ternary chalcogenide TlBiSe₂ by angle-resolved photoemission spectroscopy. By tuning the synchrotron radiation energy we reveal that it features an almost ideal Dirac cone with the Dirac point well isolated from bulk continuum states. This suggests that TlBiSe₂ is a promising material for realizing quantum topological transport.
Source: Physical Review Letters
Institutions: Hiroshima University, Institute of Strength Physics and Materials Science, National Research Tomsk State University, Ikerbasque, University of the Basque Country, Material Physics Center, Donostia International Physics Center, Consejo Superior de Investigaciones Científicas, National Institute of Technology, Kure College, Research Institute for Synchrotron Radiation Science, Hiroshima University
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2084143141