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KMID : 0371919890020010139
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Journal of Wonju College of Medicine
1989 Volume.2 No. 1 p.139 ~ p.147
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The Physical Properties of Supercooled Ice in Magnetic Field
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Abstract
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Thermally stimulated depolarization current (TSDC) has been measured in distilled and deionized water ice in the temperature range of 77~320K at a constant heating rate, and the ionic space charge thermocurrent (ITC) and thermoluminescence (TL) has been measured from Li^(+) ion implanted H₂O ice. In the case of TSDC of H₂O ice, the heterocharge give risk to 150K, while the homocharge give rise to 210K TSDC peak. The heterocharge peak TSDC is found to be first kinetic order and that the activation energy is 0.14eV using the initial rising method. In order to investigate that electric dipole is due to the polarization in the bulk of H₂O ice applied uniform electric field and homocharge due to the ionic space charge, TSDC curve from UV radiated H₂O ice shows two peaks at 170K and 210K. Also H₂O ice applied uniform magnetic field has two TSDC peak at 210K and 250K. The peak at 210K is a homocharge and the peak at 250K is a heterocharge. The dipoles of H₂O molecules can be oriented by magnetic field.
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KEYWORD
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