Abstract
Momentum dependence of charge excitations across the effective Mott gap in several quasi-low-dimensional model cuprates with different effective dimensionalities is studied using high resolution inelastic X-ray scattering by working near Copper k-edge resonance which allows us to extract the dispersion relations of the particle-hole pair excitations at the gap edge. Besides electron-electron correlation, momentum dependence of the gap-excitations is found to be strongly dependent on the effective dimensionality (or topology) of the 3dx2-y2 network.
Original language | English (US) |
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Pages (from-to) | 2212-2215 |
Number of pages | 4 |
Journal | Journal of Physics and Chemistry of Solids |
Volume | 66 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2005 |
All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics