Speaker
Zahid Hasan
(Princeton University)
Description
Bulk Topological Insulators are a new phase of electronic
matter which realizes a non-quantum-Hall-like topological
state in the bulk matter and unlike the quantum Hall liquids
can be turned into superconductors. In this talk, I will first
briefly review the basic theory and experimental probes that
reveal topological order. I will then discuss experimental
results that demonstrate the fundamental properties of
topological insulators such as spin-momentum locking, non-
trivial Berry’s phases, mirror Chern number, absence of
backscattering or no U-turn rule, protection by time-
reversal symmetry and the existence of room temperature
topological order (at the level of M.Z.H and C.L. Kane, Rev.
of Mod. Phys., 82, 3045 (2010)). I will then discuss the
possible exotic roles of broken symmetry phases such as
superconductivity and magnetism in doped topological
insulators and their potential device applications in
connection to our recent results as well as briefly outline
the emerging research frontiers of the field as a whole. If
time permits, I will discuss experimental progress in finding
topological insulators beyond Kane-Mele Z2 paradigm.
