Introducing strong correlation effects into graphene by gadolinium intercalation

Abstract

Exotic ordered ground states driven by electronic correlations are expected to be induced in monolayer graphene when doped to the Van Hove singularity. Such doping levels are reached by intercalating Gd in graphene on SiC(0001), resulting in a strong homogeneity and stability. The electronic spectrum now exhibits severe renormalizations. Flat bands develop which is driven by electronic correlations according to our theoretical studies. Due to strong electron-phonon coupling in this regime, polaron replica bands develop. Thus, interesting ordered ground states should be made accessible.

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• Coexistence of extended flat band and Kekulé order in Li-intercalated graphene
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• Magnesium-intercalated graphene on SiC: highly n-doped air-stable bilayer graphene at extreme displacement fields
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• Van Hove Singularity and Lifshitz Transition in Thickness-Controlled Li-Intercalated Graphene
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• Electronic Structure and Kohn-Luttinger Superconductivity of Heavily-Doped Single-Layer Graphene
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• Spin excitations in the heavily overdoped monolayer graphene superconductor: an analog to the cuprates
• Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene
• Electronic correlations in epitaxial graphene: Mott states proximitized to a relativistic electron gas
• Universal $T/B$ scaling behavior of heavy fermion compounds
• Mesoscopic scale study of lateral dynamics of Sn-intercalation of the buffer layer on SiC
• Unusual flat and extended morphology of intercalated Cu under MoS2
• Doping the spin-polarized Graphene minicone on Ni(111)
• Bilayer, hydrogenated and fluorinated graphene: QED vs SU(2) QCD theory
• Mean-field analysis of a Hubbard interaction on Bernal Bilayer Graphene
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• A unified quasiparticle approach to the theory of strongly correlated electron liquids
• Strain Engineering of van Hove Singularity and Coupled Itinerant Ferromagnetism in Quasi-2D Oxide Superlattices
• Theoretical limits of electron and hole doping in single layer graphene from DFT calculations
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• Honeycomb Hubbard Model at van Hove Filling