Enhancement of spin-orbit coupling and magnetic scattering in hydrogenated graphene

Abstract

Spin-orbit coupling (SOC) can provide essential tools to manipulate electron spins in two-dimensional materials like graphene, which is of great interest for both fundamental physics and spintronics application. In this paper, we report the low-field magnetotransport of in situ hydrogenated graphene where hydrogen atoms are attached to the graphene surface in continuous low temperature and vacuum environment. Transition from weak localization to weak antilocalization with increasing hydrogen adatom density is observed, indicating enhancing Bychkov-Rashba-type SOC in a mirror symmetry broken system. From the low-temperature saturation of phase breaking scattering rate, the existence of spin-flip scattering is identified, which corroborates the existence of magnetic moments in hydrogenated graphene.

References in corpus (13)

• The electronic properties of graphene
• Boron nitride substrates for high-quality graphene electronics
• Graphene Spintronics
• Atomic-scale control of graphene magnetism using hydrogen atoms
• Weak localisation in graphene flakes
• Tuning the effective fine structure constant in graphene: opposing effects of dielectric screening on short- and long-range potential scattering
• Magnetic Moment Formation in Graphene Detected by Scattering of Pure Spin Currents
• Tunable spin-orbit coupling and symmetry-protected edge states in graphene/WS${}_2$
• Tuning Kondo physics in Graphene with gate voltage
• Evidence for spin-flip scattering and local moments in dilute fluorinated graphene
• Strong spin-orbit interactions and weak antilocalization in carbon doped p-type GaAs heterostructures
• Local density of states and Friedel oscillation in graphene
• Electronic transport and scattering times in tungsten-decorated graphene