Two-photon- and x-ray-induced Nb4+ and O− small polarons in LiNbO3
- 1 July 1978
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 33 (1) , 35-38
- https://doi.org/10.1063/1.90181
Abstract
ESR investigations show that two‐photon excitation and x irradiation of nominally pure LiNbO3 crystals at 20 K create electrons, which are self‐trapped as Nb4+, and holes, which are captured at acceptor‐type defects as O−. The radiation‐induced absorption at low temperatures is attributed to these centers. The trapped electrons and holes play an important role in the two‐photon‐induced photorefractive process.Keywords
This publication has 17 references indexed in Scilit:
- Light induced W5+ESR in WO3Journal of Physics C: Solid State Physics, 1977
- Bound small polaron optical absorption in tetrahedral symmetrySolid State Communications, 1976
- Optical absorption of small polarons bound in octahedral symmetry: V? type centers in alkaline earth oxidesZeitschrift für Physik B Condensed Matter, 1976
- Comparative studies of the LNT coloration of Y3Al5O12, YAlO3, and LiNbO3 crystalsPhysica Status Solidi (a), 1976
- ESR and optical absorption of bound-small polarons in YAlPhysical Review B, 1975
- Bound Small Polaron Optical Absorption in V−‐Type Centres in MgOPhysica Status Solidi (b), 1974
- Electron spin resonance studies of holes trapped at Mg2+, Li+ and cation vacancies in Al2O3.Solid State Communications, 1971
- Spacing of the hyperfine sextet in Mn2+ ESR in LiNbO3Physics Letters A, 1968
- Electron-Spin Resonances in Reactor-Irradiated Aluminum OxidePhysical Review B, 1965
- Electron-Spin Resonances in Gamma-Ray-Irradiated Aluminum OxidePhysical Review B, 1964