Twisted graphene superlattices: resonating valence bond states and magnetic properties DOI Creative Commons
Florentino López‐Urías, A. Rubio‐Ponce, Emilio Muñoz‐Sandoval

et al.

Journal of Physics Condensed Matter, Journal Year: 2024, Volume and Issue: 36(40), P. 405802 - 405802

Published: June 28, 2024

Resonating valence bond (RVB) states are fundamental for understanding quantum spin liquids in two-dimensional (2D) systems. The RVB state is a collective phenomenon which spins uncoupled. 2D lattices such as triangular, honeycomb, and dice were investigated using the Hubbard model exact diagonalization method. We analyzed total spin, spin-spin correlation functions, local magnetic moments, charge gaps function of on-site Coulomb repulsion, electron concentration, electronic hopping parameters. Phase diagrams showed that can live half-filled hole-doped anisotropic triangular lattices. found two types states: one honeycomb sublattice other centered hexagons Owing to novel discovery exotic ordering moiré patterns twisted bilayer graphene transition metal dichalcogenide systems, our results provide physical insights into onset magnetism possible liquid these layered materials.

Language: Английский

Twisted graphene superlattices: resonating valence bond states and magnetic properties DOI Creative Commons
Florentino López‐Urías, A. Rubio‐Ponce, Emilio Muñoz‐Sandoval

et al.

Journal of Physics Condensed Matter, Journal Year: 2024, Volume and Issue: 36(40), P. 405802 - 405802

Published: June 28, 2024

Resonating valence bond (RVB) states are fundamental for understanding quantum spin liquids in two-dimensional (2D) systems. The RVB state is a collective phenomenon which spins uncoupled. 2D lattices such as triangular, honeycomb, and dice were investigated using the Hubbard model exact diagonalization method. We analyzed total spin, spin-spin correlation functions, local magnetic moments, charge gaps function of on-site Coulomb repulsion, electron concentration, electronic hopping parameters. Phase diagrams showed that can live half-filled hole-doped anisotropic triangular lattices. found two types states: one honeycomb sublattice other centered hexagons Owing to novel discovery exotic ordering moiré patterns twisted bilayer graphene transition metal dichalcogenide systems, our results provide physical insights into onset magnetism possible liquid these layered materials.

Language: Английский

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