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cond-mat.mes-hall2020★ 1 cited
Robust Flat Bands with Tunable Energies in Honeycomb Superlattices
Zihao Qi, Eric Bobrow, Yi Li
Flat bands in lattice models have provided useful platforms for studying strong correlation and topological physics. Recently, honeycomb superlattices have been shown to host flat…
cond-mat.str-el2020★ 7 cited
Hund's coupling-assisted ferromagnetic percolation transition in a multiorbital flat band
Eric Bobrow, Junjia Zhang, Yi Li
By connecting Hund's physics with flat band physics, we establish an exact result for studying ferromagnetism in a multiorbital system. We consider a two-layer model consisting of…