Fermi arcs dominating the electronic surface properties of trigonal PtBi${}_2$

Abstract

Materials combining topologically non-trivial behavior and superconductivity offer a potential route for quantum computation. However, the set of available materials intrinsically realizing these properties are scarce. Recently, surface superconductivity has been reported in PtBi${}_2$ in its trigonal phase and an inherent Weyl semimetal phase has been predicted. Here, based on scanning tunneling microscopy experiments, we reveal the signature of topological Fermi arcs in the normal state patterns of the quasiparticle interference. We show that the scattering between Fermi arcs dominates the interference spectra, providing conclusive evidence for the relevance of Weyl fermiology for the surface electronic properties of trigonal PtBi${}_2$.

References in corpus (5)

• Atomic-scale visualization of quasiparticle interference on a type-II Weyl semimetal surface
• Superconducting Arcs
• Observation of Dirac surface states in the hexagonal PtBi2, a possible origin of the linear magnetoresistance
• Electronic structure of the surface superconducting Weyl semimetal PtBi${}_2$
• Enhanced weak superconductivity in trigonal $\gamma$-PtBi${}_2$

Cited by in corpus (8)

• Self-consistent surface superconductivity in time-reversal symmetric Weyl semimetals
• Phonon-mediated intrinsic topological superconductivity in Fermi arcs
• Ginzburg-Landau theory for unconventional surface superconductivity in PtBi${}_2$
• Interplay between inversion and translation symmetries in trigonal PtBi${}_2$
• Atomic Visualization of Bulk and Surface Superconductivity in Weyl Semimetal γ-PtBi2
• Gapless Topological Peierls-like instabilities in more than one dimension
• Mesoscale variations of chemical and electronic landscape on the surface of Weyl semimetal Co${}_3$Sn${}_2$S${}_2$ visualized by ARPES and XPS
• Mechanism for Nodal Topological Superconductivity on PtBi${}_2$ Surface