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

Journal Article · · Physical Review B
 [1];  [1];  [2]
  1. Univ. of Illinois at Urbana-Champaign, IL (United States)
  2. Univ. of Illinois at Urbana-Champaign, IL (United States); ETH Zurich, Zurich (Switzerland)

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.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Center for Emergent Superconductivity (CES)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-98CH10886; AC0298CH1088
OSTI ID:
1388912
Alternate ID(s):
OSTI ID: 1353501
Journal Information:
Physical Review B, Vol. 95, Issue 14; Related Information: CES partners with Brookhaven National Laboratory (BNL); Argonne National Laboratory; University of Illinois, Urbana-Champaign; Los Alamos National Laboratory; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

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Cited By (2)

Impurity-induced resonant states in topological nodal-line semimetals journal November 2019
Realistic Floquet Semimetal with Exotic Topological Linkages between Arbitrarily Many Nodal Loops journal July 2018