Rashba splitting of 100 meV in Au-intercalated graphene on SiC

Abstract

Intercalation of Au can produce giant Rashba-type spin-orbit splittings in graphene but this has not yet been achieved on a semiconductor substrate. For graphene/SiC(0001), Au intercalation yields two phases with different doping. Here, we report the preparation of an almost pure p-type graphene phase after Au intercalation. We observe a 100 meV Rashba-type spin-orbit splitting at 0.9 eV binding energy. We show that this giant splitting is due to hybridization and much more limited in energy and momentum space than for Au-intercalated graphene on Ni.

References in corpus (10)

• Electronic spin transport and spin precession in single graphene layers at room temperature
• Band-structure topologies of graphene: spin-orbit coupling effects from first principles
• Dirac Cones and Minigaps for Graphene on Ir(111)
• Spin-Orbit Proximity Effect in Graphene
• Impurity induced spin-orbit coupling in graphene
• Graphene for spintronics: giant Rashba splitting due to hybridization with Au
• Graphene with Structure-Induced Spin-Orbit Coupling: Spin-Polarized States, Spin Zero Modes, and Quantum Hall Effect
• Electronic decoupling of an epitaxial graphene monolayer by gold intercalation
• Induced magnetism of carbon atoms at the graphene/Ni(111) interface
• Graphene on Ir(111) characterized by angle-resolved photoemission

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• Large-Area Intercalated 2D-Pb/Graphene Heterostructure as a Platform for Generating Spin-Orbit Torque
• How to induce superconductivity in epitaxial graphene $via$ remote proximity effect through an intercalated gold layer
• Quasi-free-standing AA-stacked bilayer graphene induced by calcium intercalation of the graphene-silicon carbide interface
• Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene
• Rashba spin splitting based on trilayer graphene systems
• Charge transfer between van der Waals coupled metallic 2D layers