A real-space dynamical embedding Green's function method enables first-principles calculations of superconducting proximity lengths and spectral functions in mesoscopic systems and heterostructures.
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DMFT study of extended Hubbard model on triangular lattice reveals rich charge-order phase diagram with distinct pinball-liquid phases, tunable transition orders, and unexpected metallic region on electron-doped side.
Hole-doped spin multimer systems mapped to hardcore boson model exhibit superconductivity signatures; DMRG on double Kondo lattice shows pairing persists via crossover and pair correlations become independent of local spin details once binding energy is sufficient.
Additional interaction terms enhance the Seebeck coefficient and produce multiple doping-dependent sign changes tied to gap opening and Fermi-surface topology changes.
In the 2D attractive Hubbard model, Tc is enhanced near Van Hove singularities only for weak interactions, while the global maximum Tc occurs at intermediate coupling away from the singularity.
citing papers explorer
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First-principles real-space embedding theory of the superconducting proximity effect
A real-space dynamical embedding Green's function method enables first-principles calculations of superconducting proximity lengths and spectral functions in mesoscopic systems and heterostructures.
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Charge order on a triangular lattice with Mott physics and arbitrary charge density
DMFT study of extended Hubbard model on triangular lattice reveals rich charge-order phase diagram with distinct pinball-liquid phases, tunable transition orders, and unexpected metallic region on electron-doped side.
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Superconductivity in doped spin multimer systems
Hole-doped spin multimer systems mapped to hardcore boson model exhibit superconductivity signatures; DMRG on double Kondo lattice shows pairing persists via crossover and pair correlations become independent of local spin details once binding energy is sufficient.
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The thermopower properties of interacting systems
Additional interaction terms enhance the Seebeck coefficient and produce multiple doping-dependent sign changes tied to gap opening and Fermi-surface topology changes.
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Superconductivity near two-dimensional Van Hove singularities: a determinant quantum Monte Carlo study
In the 2D attractive Hubbard model, Tc is enhanced near Van Hove singularities only for weak interactions, while the global maximum Tc occurs at intermediate coupling away from the singularity.