Ultraviolet Probing of Quantum Crossbars

Details Ultraviolet Probing of Quantum Crossbars Ultraviolet Probing of Quantum Crossbars

2004-11-08

arxiv.org/abs/cond-mat/0411184v1

Physics

Condensed Matter

Strongly Correlated Electrons

11 figs., submitted to Phys. Rev. B

Scientific paper

10.1103/PhysRevB.71.045421

Ultraviolet (UV) scattering on quantum crossbars (QCB) is an effective tool for probing QCB spectral properties, leading to excitation of QCB plasmon(s). Experimentally, such a process corresponds to sharp peaks in the frequency dependence of the differential scattering cross section. The peak frequency strongly depends on the direction of the scattered light. As a result, $1D\to 2D$ crossover can be observed in the scattering spectrum. It manifests itself as a splitting of single lines into multiplets (mostly doublets). The splitting magnitude increases with interaction in QCB crosses, while the peak amplitudes decrease with electron-electron interaction within a QCB constituent.

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