Published May 1, 1988
| Version v1
Journal article
Photoexcitations in La2CuO4: 2-eV energy gap and long-lived defect states
Creators
- 1. Department of Physics, The Ohio State University, Columbus, Ohio 43210-1106
Description
We report the photoinduced optical-absorption spectrum of La2CuO4. Two photoinduced absorptions are observed, peaking at 0.5 and at 1.4 eV, with a crossover to photoinduced bleaching above 2.0 eV. These data, together with observed luminescence at ∼2 eV, confirm the presence of an energy gap at or above this energy, as well as the existence of long-lived stable electronic defect states in this system
Additional details
Publishing Information
- Journal Title
- Phys. Rev., B: Condens. Matter
- Journal Volume
- 37
- Journal Issue
- 13
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 7506-7509
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19082144
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ABSORPTION SPECTRA; COPPER OXIDES; CRYSTAL DEFECTS; ELECTRONIC STRUCTURE; ENERGY GAP; EXCITATION; LANTHANUM OXIDES; LASER RADIATION; PHOTOLUMINESCENCE; VERY LOW TEMPERATURE; VISIBLE RADIATION
- Descriptors DEC
- CHALCOGENIDES; COPPER COMPOUNDS; CRYSTAL STRUCTURE; ELECTROMAGNETIC RADIATION; EMISSION; ENERGY-LEVEL TRANSITIONS; LANTHANUM COMPOUNDS; LUMINESCENCE; OXIDES; OXYGEN COMPOUNDS; PHOTON EMISSION; RADIATIONS; RARE EARTH COMPOUNDS; SPECTRA; TRANSITION ELEMENT COMPOUNDS