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From: Explainable deep learning elucidates orbital–spin synergy in multi-field-responsive Pt-BiFeO₃ for efficient photocatalytic H₂ production

Explainable deep learning elucidates orbital–spin synergy in multi-field-responsive Pt-BiFeO<sub>3</sub> for efficient photocatalytic H<sub>2</sub> production

Figure 6. Electronic structure examination and schematic illustration of the multi-field-enhanced photocatalytic pathway of BiFe(Pt)O₃: (A) TDOS of BiFe(Pt)O₃; (B) PDOS of Fe 3d, Pt 5d, and O 2p orbitals; (C) Charge density distribution of BiFe(Pt)O₃; (D) Fe L_2,3-edge XAS/XMCD spectra of pristine BiFeO₃ and BiFe(Pt)O₃; (E) Pt L_2,3-edge XAS/XMCD spectra of BiFe(Pt)O₃; (F) Schematic illustration of the synergistic enhancement pathway of photocatalytic hydrogen evolution under the coupling of light irradiation, magnetic field, mechanical vibration, and ferroelectric polarization. TDOS: Total density of states; PDOS: partial density of states; XAS: X-ray absorption spectroscopy; XMCD: X-ray magnetic circular dichroism; CB: conduction band; VB: valence band.