The electronic structure of cuprates from high energy spectroscopy

Details The electronic structure of cuprates from high energy spectroscopy The electronic structure of cuprates from high energy spectroscopy

2000-11-15

arxiv.org/abs/cond-mat/0011267v1

J. Electron Spectr. Relat. Phenom. 117-118, 203 (2001)

Physics

Condensed Matter

Superconductivity

J. Electron Spec. Relat. Phenom.: special issue on electron correlation, in press

Scientific paper

We report studies of the electronic structure and elementary excitations of doped and undoped cuprate chains, ladders and planes. Using high energy spectroscopies such as x-ray absorption, core level photoemission and angle resolved photoemission spectroscopy, important information regarding the charge distribution and hole dynamics can be obtained. The comparison of the experimental data with suitable theoretical models sets constraints on the parameters entering into the model calculations, and offers insight into the important physical quantities governing the electronic structure of these materials. Recurring themes include the importance of the dimensionality of the Cu-O network (1D->2D) and the crucial role played by the spin-background in determining the dynamics of low-lying excitations in these strongly correlated systems.

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