Frequency-dependent conductivity of charge ordering phases in two-dimensional organic metals: search for the anisotropic dispersion and collective excitations

• Antragsteller: Professor Dr. Martin Dressel
• Fachliche Zuordnung: Experimentelle Physik der kondensierten Materie
• Förderung: Förderung von 2008 bis 2010
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 54227208

The aim of this research program is to advance the understanding of charge-ordered electronic phases stabilized in two-dimensional organic conductors. In particular, we will look for the collective excitations of these charge-ordered states: the dc electricfield nonlinear effects, the low-frequency loss peak and the pinned charge-mode resonance. Experimentally, we will perform studies of frequency, electric field and temperature dependent conductivity in the dc-MHz range and in the optical wave range (submillimeter, millimeter and infrared spectral range) for electric fields along the main crystallographic directions. These experiments will be extended by investigations of galvanornagnetic properties of the charge ordering phase transition.

• DFG-Verfahren: Sachbeihilfen
• Internationaler Bezug: Kroatien
• Großgeräte: Mikrowellengenerator inkl. W-band Modul
• Gerätegruppe: 6040 Frequenz-Umformer (statisch) und Hochfrequenzgeneratoren
• Beteiligte Person: Dr. Silvia Tomic