Topological insulators under ultrafast light

The electronic structure of prototype topological insulators has been studied with ultrafast ARPES, using the ARTOF spectrometer in combination with the femtosecond laser source at the LPS. Using time-resolved multi-dimensional …

Tuning Dirac cones in BaNiS2

Dirac fermions play a central role in the physics of topological materials. We have shown for the first time that the properties of Dirac cones can be varied in reciprocal …