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Creators/Authors contains: "Vafek, Oskar"

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  1. ; ; ; ; ; ; ; ; ; ; et al (, Nature Physics)
    Free, publicly-accessible full text available August 11, 2026
  2. (, Physical Review Applied)
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  3. ; (, Physical Review B)
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  4. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review B)
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  5. ; ; ; (, Physical Review B)
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  6. ; (, Physical Review B)
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  7. ; (, Physical Review B)
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  8. ; (, SciPost Physics)
    We derive BM-like continuum models for the bands of superlattice heterostructures formed out of Fe-chalcogenide monolayers: (I) a single monolayer experiencing an external periodic potential, and (II) twisted bilayers with long-range moire tunneling. A symmetry derivation for the inter-layer moire tunnelling is provided for both the\Gamma Γ andM M high-symmetry points. In this paper, we focus on moire bands formed from hole-band maxima centered on\Gamma Γ , and show the possibility of moire bands withC=0 C = 0 or±1 ± 1 topological quantum numbers without breaking time-reversal symmetry. In theC=0 C = 0 region for\theta→0 θ → 0 (and similarly in the limit of large superlattice period for I), the system becomes a square lattice of 2D harmonic oscillators. We fit our model to FeSe and argue that it is a viable platform for the simulation of the square Hubbard model with tunable interaction strength. 
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  9. ; ; ; ; (, Physical Review B)
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  10. ; (, Physical Review B)
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