EPR Studies of the Defect Centers in γ-Irradiated KH2PO4, NH4H2PO4 and Ba(H2PO4)2 Single Crystals: Effects of Impurities and Thermal Annealing
1993 年 62 巻 9 号 p. 3294-3301
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1993 年 62 巻 9 号 p. 3294-3301
The CrO42− impurity has been found to be very effective in stabilizing a phosphorus oxyradical produced by γ-irradiation at room temperature in KH2PO4 and NH4H2PO4 crystals. A similar radical species can be observed in pure Ba(H2PO4)2 crystals γ-irradiated at room temperature. The observed principal values of the g-factor and the 31P hyperfine splitting indicate that this radical species could be the [PO5]2− or [O3POO]2−.
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