Radiation damage of CrO42− doped KH2PO4 single crystals
- 15 September 1981
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 75 (6) , 2513-2520
- https://doi.org/10.1063/1.442427
Abstract
Radiation damage studies of CrO42− ions doped in KH2PO4 crystals are presented. The optical absorption spectra of these crystals before irradiation show characteristic bands around 3600 and 2700 Å. The optical spectra after irradiation show new absorption bands in the region 5000–7000 Å. EPR spectra of the irradiated crystals consist of a single line at RT which shows splitting at low temperatures. By a systematic correlation of the optical absorption and EPR results at different stages of irradiation, the radiation damage product of these crystals is identified as CrO43−. The analysis of EPR spectra shows axial symmetry for CrO43− in the paraelectric phase with g∥ = 1.955 and g⊥ = 1.972 and orthorhombic symmetry in the ferroelectric phase with gx = 1.983, gy = 1.976, and gz = 1.945.Keywords
This publication has 25 references indexed in Scilit:
- Radiation damage studies of CrO42−-doped alumsThe Journal of Chemical Physics, 1981
- Radiation damage of MnO−4 ions in (NH4)2SO4 single crystalsPhysica Status Solidi (a), 1980
- CrO43- centers in NH4Al(SO4)2.12H2 O single crystalsSolid State Communications, 1979
- Optical properties of dichromate centers in some latticesChemical Physics Letters, 1978
- ESR Study of a Cr5+ Centre in Ferroelectric Ammonium SulphatePhysica Status Solidi (b), 1978
- E.P.R. Study of γ-irradiated single crystals of K2Cr2O7Journal of Physics and Chemistry of Solids, 1974
- Low temperature absorption spectra of CrO 4 = in K2SO4 and VO 4 ≡ in Na3PO4 · 12H2OTheoretical Chemistry Accounts, 1968
- Low temperature absorption spectra of KMnO4 in KClo4Theoretical Chemistry Accounts, 1967
- The Electronic Structure of Permanganate IonInorganic Chemistry, 1964
- Structure and Reactivity of the Oxyanions of Transition Metals.Chemical Reviews, 1963