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TT: Fachverband Tiefe Temperaturen
TT 110: Superconductivity: Fe-based Superconductors – Theory
TT 110.10: Vortrag
Freitag, 20. März 2015, 12:00–12:15, H 2053
Transport in the spin-density-wave phase of iron pnictides — •Maxim Breitkreiz1, Jacob Schmiedt1, Philip M. R. Brydon2, and Carsten Timm1 — 1Institute of Theoretical Physics, Technische Universität Dresden, 01062 Dresden, Germany — 2Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, USA 20742
The metallic spin-density-wave phase of iron pnictides shows characteristic and not yet understood features such as the pronounced anisotropy of the resistivity, the enhanced Hall coefficient, and magnetoresistance. We analyze the transport behavior within the linear-response theory and take into account scattering off spin fluctuations and damped magnons. Vertex corrections turn out to be very important because of strong anisotropy in the scattering rates and the reconstructed Fermi surfaces.