Past projects:

3d
Nesting function of compressed fcc Li

Superconductivity of  compressed fcc Li 

Discovery of higher temperature superconductivity in MgB2 brought about  a renewed interest in strongly coupled conventional superconductors.  Surprizingly  Li, one of the simplest possible  solids,  turns out to be  ~20 K superconductor when compressed.  We use  density functional electronic structure and linear response theory to investigate the origin of Li superconductivity and lattice dynamics and to link the effects to the Fermi surface topology.




Superconductivity and lattice instability of Li under pressure
(presentation pdf)

sigma
Change of inter-band conductivity below Tc
Electronic structure of EuB6
Presence of a gap in the bandstructure of EuB6 has been controversial for some time. We have studied the spectral weight transfer in the optical spectrum induced by magnetic ordering and conclude that the observed behavior is consistent only with a semimetallic groundstate.






Electronic structure of EuB6: insights from optical spectroscopy
(presentation pdf)