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Add to Calendar 11/27/2017 12:00 pm 11/27/2017 America/Chicago ICMT Seminar: "Quasiparticle interference and resonant states in normal and superconducting flat bands" DESCRIPTION:

We study impurity scattering in the normal and d-wave superconducting states of flatbands and show that, due to additional scattering phase space available for impurities on the surface, the quasiparticle interference pattern acquires an extended character instead of a discrete collection of delta function peaks. Moreover, using the T-matrix formalism, we demonstrate that the conventional behavior of a scalar impurity in a d-wave superconductor breaks down on the surface of a line nodal semimetal in the quasi-flat-band limit.

\n\nSPEAKER:

Chandan Setty, University of Illinois at Urbana Champaign

190 ESB

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ICMT Seminar: "Quasiparticle interference and resonant states in normal and superconducting flat bands"

Speaker Chandan Setty, University of Illinois at Urbana Champaign
Date: 11/27/2017
Time: 12 p.m.
Location:

190 ESB

Sponsor:

Institute for Condensed Matter Physics

Event Type: Seminar/Symposium
 

We study impurity scattering in the normal and d-wave superconducting states of flatbands and show that, due to additional scattering phase space available for impurities on the surface, the quasiparticle interference pattern acquires an extended character instead of a discrete collection of delta function peaks. Moreover, using the T-matrix formalism, we demonstrate that the conventional behavior of a scalar impurity in a d-wave superconductor breaks down on the surface of a line nodal semimetal in the quasi-flat-band limit.

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