How X-rays pushed topological matter research over the top
(PHYSorg.com Physics)

While using X-rays generated by the Advanced Light Source (ALS), a synchrotron facility at the Department of Energy`s Lawrence Berkeley National Laboratory (Berkeley Lab), to study a bismuth-containing thermoelectric material that can convert heat into electricity, physicist M. Zahid Hasan of Princeton University saw that something was interfering with the anticipated view of electrons` behavior inside the material.