Broken symmetries and the related interface-induced effects at Weyl-system TaAs in proximity of noble metals.

ABSTRACT: Weyl semimetal TaAs, congenially accommodating the massless Weyl fermions, furnishes a platform to observe a spontaneous breaking of either the time-reversal or the inversion symmetry and the concurrent genesis of pairs of Weyl nodes with significant topological durability. Former experimental analysis, which reveals that the near-zero spin-polarization of bulk TaAs, experiences a boost in proximity of point-contacts of non-magnetic metals along with the associated tip-induced superconductivity, provides the impetus to study the large-area stacked interfaces of TaAs with noble metals like Au and Ag. The primary outcomes of the present work can be listed as follows: (1) First-principles calculations on the interfacial systems have manifested an increment of the interface-induced spin-polari

SUBMITTER: Maji TK 

PROVIDER: S-EPMC7468271 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature