Rudi Hackl

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Raman scattering probes electronic excitations • Inelastic scattering of light with electron-hole excitations of the correlated many-body system. • Use of polarizers for the incident and reflected light allows one to select different symmetries of the electron-hole excitations. • Signal depends on the Raman scattering amplitude γ(k). We consider three(More)
The split personality of the conduction electrons in one high-temperature superconductor might indicate that periodic modulations of their spin and charge density are a general feature of these mystifying materials. In simple metals, conduction electrons undergo well-understood phase transitions: they can become superconducting or ferro-magnetic, or acquire(More)
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