The behavior of semi-metal Bi$_{4}$Te$_{3}$ under pressure

As a member of the (Bi$_{2})_{m}$(Bi$_{2}$Te$_{3})_{n}$ adaptive series, Bi$_{4}$Te$_{3}$ exhibits identical crystallographic symmetry and similar electronic properties to the archetypal thermoelectric material Bi$_{2}$Te$_{3}$. The extra Bi atoms in Bi$_{4}$Te$_{3}$ serve to increase the electronic density of states, making Bi$_{4}$Te$_{3}$ a semi-metal, as opposed to semiconducting Bi$_{2}$Te$_{3}$, at ambient pressure. We will report the results of high-pressure structural and magnetotransport characterization of Bi$_{4}$Te$_{3}$, focusing on the interplay between structural parameters and the underlying electronic properties. Lawrence Livermore National Laboratory is operated by Lawrence Livermore National Security, LLC, for the U.S. Department of Energy, National Nuclear Security Administration under Contract DE-AC52-07NA27344.