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Long-range current-induced spin accumulation in chiral crystals
Article states that chiral materials, similarly to human hands, have distinguishable right-handed and left-handed enantiomers which may behave differently in response to external stimuli, so for the first time the authors use an approach based on the density functional theory (DFT)+PAOFLOW calculations to quantitatively estimate the so-called collinear Rashba–Edelstein effect (REE) that generates spin accumulation parallel to charge current and can manifest as chirality-dependent charge-to-spin conversion in chiral crystals. The authors reveal that the spin accumulation induced in the bulk by an electric current is intrinsically protected by the quasi-persistent spin helix arising from the crystal symmetries present in chiral systems with the Weyl spin–orbit coupling.
Date:
November 18, 2022
Creator:
Roy, Arunesh; Cerasoli, Frank T.; Jayaraj, Anooja; Tenzin, Karma; Buongiorno Nardelli, Marco & Sławińska, Jagoda
System:
The UNT Digital Library