Direct probe of Mott-Hubbard to charge-transfer insulator transition and electronic structure evolution in transition-metal systems
Copyright policy )Direct probe of Mott-Hubbard to charge-transfer insulator transition and electronic structure evolution in transition-metal systems
We report the most direct experimental verification of Mott-Hubbard and charge-transfer insulators through x-ray emission spectroscopy in transition-metal (TM) fluorides. The p-d hybridization features in the spectra allow a straightforward energy alignment of the anion-2p and metal-3d valence states, which visually shows the difference between the two types of insulators. Furthermore, in parallel with the theoretical Zaanen-Sawatzky-Allen diagram, a complete experimental systematics of the 3d Coulomb interaction and the 2p-3d charge-transfer energy is reported and could serve as a universal experimental trend for other TM systems including oxides.
- University of California System United States
- Lawrence Berkeley National Laboratory United States
- University of North Texas United States
- Lawrence Berkeley National Laboratory United States
- Advanced Light Source United States
Energy storage, transition-metal systems, Verification Mott-Hubbard, 25 Energy Storage, Mott-Hubbard, Charge-Transfer, Charge-transfer, Environmental Energy Technologies, Fluorides, Energy Alignment Through Hybridization (EATH), Emission Spectroscopy, Hybridization, Alignment, Superconductivity And Superfluidity, Mott-hubbard, Charge-transfer, transition-metal systems, Energy Alignment Through Hybridization (EATH), 36 Materials Science, Physics, Energy Alignment Through Hybridization (Eath), Oxides, Spectra, Condensed matter physics, 75 Condensed Matter Physics, Materials science, Mott-hubbard, Valence, Electronic Structure, Transition-Metal Systems, Materials Sciences, Probes, superconductivity and superfluidity, Condensed matter physics, superconductivity and superfluidity
Energy storage, transition-metal systems, Verification Mott-Hubbard, 25 Energy Storage, Mott-Hubbard, Charge-Transfer, Charge-transfer, Environmental Energy Technologies, Fluorides, Energy Alignment Through Hybridization (EATH), Emission Spectroscopy, Hybridization, Alignment, Superconductivity And Superfluidity, Mott-hubbard, Charge-transfer, transition-metal systems, Energy Alignment Through Hybridization (EATH), 36 Materials Science, Physics, Energy Alignment Through Hybridization (Eath), Oxides, Spectra, Condensed matter physics, 75 Condensed Matter Physics, Materials science, Mott-hubbard, Valence, Electronic Structure, Transition-Metal Systems, Materials Sciences, Probes, superconductivity and superfluidity, Condensed matter physics, superconductivity and superfluidity
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