Giant Rashba effect at the topological surface of PrGe revealing antiferromagnetic spintronics.

ABSTRACT: Rashba spin-orbit splitting in the magnetic materials opens up a new perspective in the field of spintronics. Here, we report a giant Rashba spin-orbit splitting on the PrGe [010] surface in the paramagnetic phase with Rashba coefficient α _R  = 5 eVÅ. We find that α _R can be tuned in this system as a function of temperature at different magnetic phases. Rashba type spin polarized surface states originates due to the strong hybridization between Pr 4f states with the conduction electrons. Significant changes observed in the spin polarized surface states across the magnetic transitions are due to the competition between Dzyaloshinsky-Moriya interaction and exchange interaction present in this system. Presence of Dzyaloshinsky-Moriya interaction on the topological surfac

SUBMITTER: Banik S 

PROVIDER: S-EPMC5482886 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature