KOH添加氷IhのNMR

書誌事項

タイトル別名
  • NMR study of KOH-doped ice Ih.
  • KOH テンカヒョウ Ih ノ NMR

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抄録

Spin lattice relaxation time T1 in KOH-doped ice was measured with the pulse NMR method between the temperature range from just below melting point to 100K(-173°C).The excitation magnetic frequencies were 13.1, 24.1, 31.4 and 47.5 MHz. Temperature and frequency dependence of T1 was successfully analyzed using two spin systems which have different proton motion states. Comparison of the temperature dependence of the coupling constant between two spin systems and that of the dielectric relaxation showed that the rapid dielectric relaxation excited by KOH doping corresponds to the transfer motion of protons on the hydrogen bond and is stabilized below about 200K.

収録刊行物

  • 雪氷

    雪氷 64 (3), 223-231, 2002

    公益社団法人 日本雪氷学会

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