Abstract
We report momentum dependence of charge excitations across the effective Mott gap in quasi-low dimensional model cuprates with different effective dimensionalities (CuGeO3 and SrCuO2), using high resolution inelastic X-ray scattering by working near a resonance. Particle-hole pair excitations at the gap edge in these compounds are found to be strongly dependent on the effective dimensionality of the lattice and the strength of electron-electron Coulomb interaction.
Original language | English (US) |
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Pages (from-to) | 3519-3524 |
Number of pages | 6 |
Journal | International Journal of Modern Physics B |
Volume | 17 |
Issue number | 18-20 II |
DOIs | |
State | Published - Aug 10 2003 |
All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Condensed Matter Physics
Keywords
- Correlated electrons
- Inelastic X-ray scattering
- Mott insulators
- Resonant