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19 April 2024 |
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Electronic Structure of Mott Insulators Studied by Inelastic X-ray Scattering | | M. Z. Hasan
; E. D. Isaacs
; Z-X. Shen
; L. L. Miller
; K. Tsutsui
; T. Tohyama
; S. Maekawa
; | | Date: |
27 Feb 2001 | | Journal: | Science 288, 1811 (2000) | | Subject: | Strongly Correlated Electrons | cond-mat.str-el | | Abstract: | The electronic structure of Mott insulators continues to be a major unsolved problem in physics despite more than half-century of intense research efforts. Well-developed momentum-resolved spectroscopies such as photoemission or neutron scattering cannot probe the full Mott gap. We report observation of dispersive charge excitations across the Mott gap in a high Tc parent cuprate Ca2CuO2Cl2 using high resolution resonant inelastic x-ray scattering shedding light on the anisotropy of Mott-gap. The results provide direct support for the Hubbard model to describe charge excitations across the Mott gap. | | Source: | arXiv, cond-mat/0102489 | | Services: | Forum | Review | PDF | Favorites | |
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