EPR Observations of Positional Disorder of the [(CH_3)_3NH]^+ Ions in [(CH_3)_3NH]CdCl_3

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概要

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• Two chemically inequivalent [N(CH_3)_3]^+ radical species produced via γ-irradiation were detected by EPR in the low-temperature, orthorhombic 1×√<3> phase of [(CH_3)_3NH]CdCl_3. This indicates a twofold, static disorder of the [(CH_3)_3NH]^+(TrM) ions. One of the radical species could be identified as originating from the "normal" TrM ions and the other from the "disordered" TrM ions. The EPR result also indicates that the population ratio of the "disordered" TrM ions relative to the "normal" TrM ions is temperature dependent ; this ratio decreases with decreasing temperatures.

• 社団法人日本物理学会の論文
• 1994-01-15

著者

• Yu Jiang-tsu

  Institute Of Physics National Taiwan Normal University

• Lou Ssu-hao

  Institute Of Physics National Taiwan Normal University

• Liu Kuo-Tung

  Institute of Physics, National Taiwan Normal University

• Jeng Yng-Huey

  Institute of Physics, National Taiwan Normal University

• Liu Kuo-tung

  Institute Of Physics National Taiwan Normal University

• Jeng Yng-huey

  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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