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25 April 2024 |
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Asymmetries in the electron-hole pair dynamics and strong Mott pseudogap effect in the phase diagram of cuprates | | M.Z. Hasan
; Y. Li
; D. Qian
; Y.-D. Chuang
; H. Eisaki
; S. Uchida
; Y. Kaga
; T. Sasagawa
; H. Takagi
; | | Date: |
25 Jun 2004 | | Subject: | Strongly Correlated Electrons | cond-mat.str-el | | Abstract: | Electron behavior in doped Mott systems continues to be a major unsolved problem in quantum many-electron physics. A central issue in understanding the universal Mott behavior in a variety of complex systems is to understand the nature of their electron-hole pair excitation modes. Using high resolution resonant inelastic x-ray scattering (RIXS) we resolve the momentum dependence of electron-hole pair excitations in two major classes of doped copper oxides which reveals a Mott pseudogap over the full Brillouin zone and over the entire phase diagram. The pair bandwidth and zone-boundary pair velocity renormalize on either sides of the phase diagram at very different rates indicating strong particle-hole doping asymmetries observed for the first time. | | Source: | arXiv, cond-mat/0406654 | | Services: | Forum | Review | PDF | Favorites | |
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