English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Recent experiments have revealed the evidence of nodal-line superconductivityin half-Heusler superconductors, e.g. YPtBi. Theories have suggested thetopological nature of such nodal-line superconductivity and proposed theexistence of surface Majorana flat bands on the (111) surface of half-Heuslersuperconductors. Due to the divergent density of states of the surface Majoranaflat bands, the surface order parameter and the surface impurity play essentialroles in determining the surface properties. In this work, we studied theeffect of the surface order parameter and the surface impurity on the surfaceMajorana flat bands of half-Heusler superconductors based on the Luttingermodel. To be specific, we consider the topological nodal-line superconductingphase induced by the singlet-quintet pairing mixing, classify all the possibletranslationally invariant order parameters for the surface states according toirreducible representations of $C_{3v}$ point group, and demonstrate that anyenergetically favorable order parameter needs to break time-reversal symmetry.We further discuss the energy splitting in the energy spectrum of surfaceMajorana flat bands induced by different order parameters and non-magnetic ormagnetic impurities. We proposed that the splitting in the energy spectrum canserve as the fingerprint of the pairing symmetry and mean-field orderparameters. Our theoretical prediction can be examined in the future scanningtunneling microscopy experiments.

Surface Majorana Flat Bands in $j=\frac{3}{2}$ Superconductors with Singlet-Quintet Mixing