EPR Studies of the Defect Centers in γ-Irradiated KH_2PO_4, NH_4H_2PO_4 and Ba(H_2PO_4)_2 Single Crystals : Effects of Impurities and Thermal Annealing

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概要

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• The CrO^<2->_4 impurity has been found to be very effective in stabilizing a phosphorus oxyradical produced by γ-irradiation at room temperature in KH_2PO_4 and NH_4H_2PO_4 crystals. A similar radical species can be observed in pure Ba(H_2PO_4)_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 [PO_5]^<2-> or [O_3POO]^<2->.

• 社団法人日本物理学会の論文
• 1993-09-15

著者

• YU Jiang-Tsu

  Institute of Physics, National Taiwan Normal University

• Yu J‐t

  National Taiwan Normal Univ. Taipei Twn

• Yu Jiang-tsu

  Institute Of Physics National Taiwan Normal University

• Lou Ssu-Hao

  Institute of Physics, National Taiwan Normal University

• Lou S‐h

  National Taiwan Normal Univ. Taipei Twn

• Lou Ssu-hao

  Institute Of Physics National Taiwan Normal University

• Yu Jiang-Tsu

  Institute of Physics,National Taiwan Normal University

関連論文

• ESR Investigation of a Spin 1/2 Chlorine-Associated Defect in Synthetic FeS_2 Crystals
• EPR Studies of the Defect Centers in γ-Irradiated KH_2PO_4, NH_4H_2PO_4 and Ba(H_2PO_4)_2 Single Crystals : Effects of Impurities and Thermal Annealing
• Investigation of the Ferroelectric to the Antiferroelectric Transition in LiNH_4SO_4 by the ESR of ・NH_3^+
• EPR Observations of Positional Disorder of the [(CH_3)_3NH]^+ Ions in [(CH_3)_3NH]CdCl_3

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