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TT: Fachverband Tiefe Temperaturen

TT 99: Superconductivity: (General) Theory 2

TT 99.1: Vortrag

Donnerstag, 19. März 2015, 15:00–15:15, H 2053

Functional Development in Density Functional Theory for Superconductors — •Antonio Sanna, E.K.U. Gross, and Frank Essenberger — Max Planck Institute of Microstructure Physics, Halle (Saale), Germany

Density functional theory for superconductors (SCDFT) is a fully parameter-free approach to superconductivity that allows for accurate predictions of critical temperature and properties of superconductors. We report on the most recent extensions of the method, in particular the development of new functionals to:

1) incorporate in a correct fashion Migdal's theorem;

2) compute the excitation spectrum;

3) include spin-fluctuation mediated pairing

Applications and predictions are shown for a set of materials, including conventional and unconventional superconductors.