2015/09/30 by Udit Khanna, Dibya Kanti Mukherjee, Arijit Kundu +1
Materials Science · Physics and Astronomy · #2D Materials and Applications #Advanced Condensed Matter Physics #Condensed matter physics #Current (fluid) #Josephson effect #Physics #Quantum mechanics #Semimetal #Superconductivity #Theoretical physics #Topological Materials and Phenomena #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.93.121409
published as Phys. Rev. B 93, 121409 (2016) · 4+1 Pages + Appendix, V2: Accepted version to be published on Phys. Rev. B (Rapid Comm)
arxiv created 2016/03/08 · openalex publication_date 2016/03/23 · arxiv updated 2016/03/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The separation of the Weyl nodes in a broken time-reversal symmetric Weyl semimetal leads to helical quasiparticle excitations at the Weyl nodes which, when coupled with overall spin conservation, allows only internodal transport at the junction of the Weyl semimetal with a superconductor. This leads to an unusual periodic oscillation in the Josephson current as a function of k0L, where L is the length of the Weyl semimetal and 2k0 is the internodal distance. This oscillation is robust and should be experimentally measurable, providing a direct path to confirming the existence of chiral nodes in the Weyl semimetal.