366 citations · 944 across the 16 of their papers we have counts for
16 papers
Effective spin theories for edge magnetism in graphene zigzag ribbons
Cornelie Koop, Manuel J. Schmidt
We report a thorough study of the reducibility of edge correlation effects in graphene to much-simplified effective models for the edge states. The latter have been used before in…
Quantum Nature of Edge Magnetism in Graphene
Michael Golor, Stefan Wessel, Manuel J. Schmidt
It is argued that the subtle crossover from decoherence-dominated classical magnetism to fluctuation-dominated quantum magnetism is experimentally accessible in graphene nanoribbon…
Magnetic Correlations in Short and Narrow Graphene Armchair Nanoribbons
Michael Golor, Cornelie Koop, Thomas C. Lang +2
Electronic states at the ends of a narrow armchair nanoribbon give rise to a pair of non-locally entangled spins. We propose two experiments to probe these magnetic states, based o…
Effective models for strong electronic correlations at graphene edges
Manuel J. Schmidt, Michael Golor, Thomas C. Lang +1
We describe a method for deriving effective low-energy theories of electronic interactions at graphene edges. Our method is applicable to general edges of honeycomb lattices (zigza…
Bosonic field theory of tunable edge magnetism in graphene
Manuel J. Schmidt
A bosonic field theory is derived for the tunable edge magnetism at graphene zigzag edges. The derivation starts from an effective fermionic theory for the interacting graphene edg…
Strong correlations at topological insulator surfaces and the breakdown of the bulk-boundary correspondence
Manuel J. Schmidt
The criteria for strong correlations on surfaces of three-dimensional topological insulators are discussed. Usually, the Coulomb repulsion at such surfaces is too weak for driving…