Florian Kretschmar was member of the Gross group at WMI as a Ph.D. student between February 2010 and December 2014.

Ph.D. Thesis: Nematic Fluctuations, Fermiology and the Pair Breaking Potential in Iron-Based Superconductors (2015)

In his Ph.D. thesis, Florian Kretschmar was studing nematic states and the properties of the Fermi surface in the iron pnictide superconductors. THe performed a systematic study on the doping, temperature and momentum dependent electron dynamics in iron-based superconductors using inelastic light scattering. He could observe the Bardasis-Schrieffer modes in the excitation spectrum of superconducting Ba(0.6)K(0.4)Fe2As2 and analyzed the energy and symmetry dependence of the modes. His analysis allowed the identification of a strong sub-dominant component of the interaction potential V(k,k'). He also studied the strong nematic fluctuations in Ba[Fe_(1-x)Co_(x)]2As₂. Moreover, he identified the nature of the fluctuations and the origin of nematicity in Ba[Fe_(1-x)Co_(x)]2As₂.

He left WMI in December 2014 to join Intel Corporation as an Analog Engineer.