Interplay of Rashba and valley-Zeeman splittings in weak localization of spin-orbit coupled graphene
arXiv:2509.18332 · doi:10.1103/ymt3-48l9
Abstract
Weak localization theory is developed for graphene heterostructures with transition metal dichalcogenides and topological insulators where the Rashba and valey-Zeeman spin-splittings of the energy spectrum are large enough. The anomalous magnetoresistance in low fields caused by weak localization is calculated. It is shown that the valley-Zeeman splitting has no effect on weak localization in the absence of Rashba splitting but it results in the change of the magnetoconductivity sign in the Rashba-coupled graphene. Inter-valley scattering also affects the quantum correction to the conductivity resulting in its sign reversal. Analytical expressions are obtained for the anomalous magnetoconductivity at arbitrary relations between the Rashba and valley-Zeeman splittings as well as the inter-valley scattering rates.
arXiv comment5+3 pages, 2 figures
References in corpus (17)
- Weak localisation magnetoresistance and valley symmetry in graphene
- Van der Waals heterostructures for spintronics and opto-spintronics
- Strong interface-induced spin-orbit coupling in graphene on WS2
- Weak Antilocalization and Spin Precession in Quantum Wells
- Giant Spin Lifetime Anisotropy in Graphene Induced by Proximity Effects
- Origin and magnitude of 'designer' spin-orbit interaction in graphene on semiconducting transition metal dichalcogenides
- Large spin relaxation anisotropy and valley-Zeeman spin-orbit coupling in WSe2/Gr/hBN heterostructures
- z/-z Symmetry of spin-orbit coupling and weak localization in graphene
- Weak antilocalization in quantum wells in tilted magnetic fields
- Determining spin-orbit coupling in graphene by quasiparticle interference imaging
- Spin-orbit interaction and weak localization in heterostructures
- Quantum and classical multiple scattering effects in spin dynamics of cavity polaritons
- Twist-angle dependent proximity induced spin-orbit coupling in graphene/topological insulator heterostructures
- Weak localization in transition metal dichalcogenide monolayers and their heterostructures with graphene
- Magnetoconductivity in the presence of Bychkov-Rashba spin-orbit interaction
- Non-diffusion theory of weak localization in graphene
- Theory of weak localization in graphene with spin-orbit interaction