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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We study the quasiparticle excitations around a single vortex in thesuperconducting topological insulator Cu$_{x}$Bi$_{2}$Se$_{3}$, focusing on asuperconducting state with point nodes. Inspired by the recent Knight shiftmeasurements, we propose two ways to detect the positions of point nodes, usingan explicit formula of the density of states with Kramer-Pesch approximation inthe quasiclassical treatment. The zero-energy local density of states around avortex parallel to the $c$-axis has a twofold shape and splits along the nodaldirection with increasing energy; these behaviors can be detected by thescanning tunneling microscopy. An angular dependence of the density of stateswith a rotating magnetic field on the $a$-$b$ plane has deep minima when themagnetic field is parallel to the directions of point nodes, which can bedetected by angular-resolved heat capacity and thermal conductivitymeasurements. All the theoretical predictions are detectable via standardexperimental techniques in magnetic fields.

Field-angle-dependent low-energy excitations around a vortex in the superconducting topological insulator CuxBi2Se3