Jun 13 – 19, 2015
University of Alberta
America/Edmonton timezone
Welcome to the 2015 CAP Congress! / Bienvenue au congrès de l'ACP 2015!

Scanning Tunneling Spectroscopy of LiFeAs

Jun 16, 2015, 8:45 AM
NINT Taylor room (University of Alberta)

NINT Taylor room

University of Alberta

Invited Speaker / Conférencier invité Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM) T1-1 Superconductivity (DCMMP) / Supraconductivité (DPMCM)


Prof. D,A. Bonn (University of British Columbia)


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)


Dr S. Grothe (University of British Columbia) Prof. S.A. Burke (University of British Columbia) Dr Shun Chi (University of British Columbia)

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