Speaker
Prof.
D,A. Bonn
(University of British Columbia)
Description
LiFeAs is one of several pnictide and chalcogenide superconductors that can be grown in single-crystal form with relatively few defects. Spectroscopy away from any native defects reveals a spatially uniform superconducting gap, with two distinct gap edges. Quasiparticle interference over the gap energy range provides evidence for an S+- pairing state. We further explore the spectroscopy of both native, and deliberately introduced defects and compare to theoretical calculations for defects in an S+- superconductor.
Primary author
Prof.
D,A. Bonn
(University of British Columbia)
Co-authors
Dr
S. Grothe
(University of British Columbia)
Prof.
S.A. Burke
(University of British Columbia)
Dr
Shun Chi
(University of British Columbia)
