Quasiparticle interference and resonant states in normal and superconducting line nodal semimetals

Chandan Setty, Philip W. Phillips, Awadhesh Narayan

Research output: Contribution to journalArticle

Abstract

We study impurity scattering in the normal and d-wave superconducting states of line nodal semimetals 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.

Original languageEnglish (US)
Article number140202
JournalPhysical Review B
Volume95
Issue number14
DOIs
StatePublished - Apr 27 2017

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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