Abstract
We have investigated the optical spectroscopic responses of doped SrTiO3. We identified systematic changes of optical spectra with doping: the Drude response appears, leading to significant change of far-IR reflectivity, and the charge-transfer excitation feature around 4 eV is drastically suppressed. These behaviors originating from electron doping to a band insulator are discussed in relation to intriguing behaviors of doped SrTiO3 reported recently.
Original language | English |
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Pages (from-to) | S161-S165 |
Journal | Journal of the Korean Physical Society |
Volume | 51 |
Issue number | SUPPL. 2 |
State | Published - Oct 2007 |
Keywords
- Charge-carrier doping
- Charge-transfer excitation
- Drude component
- Optical conductivity
- Reflectivity
- SrTiO
ASJC Scopus subject areas
- General Physics and Astronomy