Topological Insulators2D Topological Superconductors&WeylSemimetalsFine

Abstract

In this talk I plan to present realization of 2D topological superconductors (TSC) with Helical Pairing [1,2] based on a Bi-based topological material and a route to SUSY critical point and then present our experimental discovery (and theory of TaAs) of Weyl semimetal state with Fermi arc surface states in TaAs and other related systems [3-5]. I discuss the progress in realizing exotic Cooper pairing in these systems. ||[1] Hasan & Kane ; RMP 82, 3045 (2010) and Qi & Zhang, RMP 83, 1057 (2011); Fu & Kane, PRL 100, 096407 (2008).|[2] S.-Y. Xu, N. Aldoust et al., Nature Physics 10, 943 (2014).|[3] T. Grover et.al., Science 344, 280 (2014).|[4] S.-Y. Xu, C. Liu, S. Kushwaha et al., Science 347, 294 (2015).|[5] S.-Y. Xu, Belopolski et.al., arXiv:1502.03807 (2015).