Electronic and Optical Properties of Oxides
- Oxygen defects in CeO2(111)
- Luminescence from MgO
Electronic and Optical Properties of Oxides
- Probing the band gap of oxide surfaces
- Characterizing point- and line-defects with respect to their atomic structure, thermodynamic stability and charge state
- Identifying gap states induced by localized defects
Oxygen Vacancies in CeO2(111)
- Inducing surface and subsurface oxygen vacancies
- Probing 4f-type defect levels in the gap and electron localization in adjacent Ce ions
Oxygen-defects (5×3.5 nm2) and associated gap states in STM conductance spectroscopy
For details: Jerratsch et al. Phys. Rev. Lett. 106 (2011) 246801
STM Luminescence from MgO
- Exciting optical modes via electron injection from STM tip
- Probing local luminescence by mirror system and CCD detector
MgO/Mo(001) topography and optical map (100×100 nm2) and STM luminescence spectra after doping with europium
For details:
Benia et al, New J. Phys. 10 (2008) 013010, Stavale et al. Appl. Phys. Lett. 101 (2012) 013109.