M. Zahid Hasan

Photo of M. Zahid Hasan

M. Zahid Hasan is an Associate Professor of Physics at Princeton University. He obtained his Ph.D. in 2002 from Stanford University, working at SLAC and Brookhaven National Laboratory. He was then a Robert H. Dicke Fellow in fundamental physics at Princeton and held several extended visiting appointments at Bell Laboratories (Murray Hill) and Lawrence Berkeley National Laboratory before joining the Faculty at Princeton. His research has focused on quantum Hall-like topological phases, exotic correlated superconductors, quantum phase transitions, and topological quantum computing physics. In recent years, he, along with his team, has experimentally discovered topological-order in bulk solids (3D topological insulators) including the single-Dirac-cone series using spin-resolved and phase-sensitive spectroscopic measurements.


Warping the cone on a Topological Insulator

The energy-momentum relationship of electrons on the surface of an ideal topological insulator forms a cone, which, when warped, can lead to unusual phenomena such as enhanced interference around defects and a magnetically ordered exotic surface. Read More »


Dirac cone in iron-based superconductors

The band structure of iron-based superconductors gives rise to yet another scenario for the appearance of Dirac fermions. Read More »


Berry’s phase and quantization in topological insulators

The exactly quantized magneto-optical response of a topological insulator is a direct result of the Berry phase protected states on its surface. Read More »