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Dirac state manipulation by surface charge doping

In a paper published in Nano Letters , we show how chemisorption of potassium on BaNiS2 can tune Dirac bands in reciprocal space at the surface (J. Zhang, T. Sohier, …

About us

We study the structural and electronic properties of quantum materials employing various experimental methods and ab initio theoretical calculations.

We focus our attention on topological insulators and Dirac/Weyl materials, correlated oxides and unconventional superconductors, as well as 2D materials and semiconductors. 

We develop experimental approaches to explore the microscopic quantum properties of matter by pushing the limits of macroscopic parameters, such as ultrafast scales in time to subatomic lateral resolution to anisotropic applied pressure. The experimental activity is coupled to ab initio electronic structure modelling. In particular, we apply DFT and post-DFT based methods for the study of ground and excited properties in materials, nanostructures and surfaces to complement and even augment experimental observations.

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