DeepH-E3 machine learning predicts that twisting bilayer SrTiO3 flattens valence bands and enhances nonlinear optical responses (SHG, shift current) while leaving linear dielectric and spin Hall responses largely unchanged.
To investigate twist-induced effects, we construct twisted bilayer SrTiO3 based on commensurate supercells under pe- riodic boundary conditions
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Deep-learning Hamiltonian reveals twist-tunable flat bands and nonlinear photocurrents in SrTiO3 moire bilayers
DeepH-E3 machine learning predicts that twisting bilayer SrTiO3 flattens valence bands and enhances nonlinear optical responses (SHG, shift current) while leaving linear dielectric and spin Hall responses largely unchanged.