Toward Insulating Behavior in Bi$_2$Se$_3$

Paul Syers; Johnierre Paglione

Toward Insulating Behavior in Bi$_2$Se$_3$

ORAL

Abstract

Research in the area of Topological Insulators has made great progress with Bismuth Selenide in recent years. However, achieving true insulating behavior in bulk samples of Bi$_2$Se$_3$ has proven elusive due to the difficulty in controlling the stoichiometry of this compound during synthesis. Here we report on progress with the synthesis and characterization of high purity, undoped Bi$_2$Se$_3$ crystals with the lowest carrier densities and highest resistivities reported to date.

March 5, 2014, 5:30 PM – March 5, 2014, 5:42 PM

Authors

Paul Syers

University of Maryland
Johnierre Paglione

University of Maryland, University of Maryland, College Park, Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, University of Mayland, Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, MD 20742, Univ of Maryland-College Park