<i>In situ</i> optical observation of the appearance of two types of quasi-liquid layers on ice crystal surfaces

DOI Web Site 8 References
  • SAZAKI Gen
    Institute of Low Temperature Science, Hokkaido University Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST) (until March 2012)
  • ZEPEDA Salvador
    Institute of Low Temperature Science, Hokkaido University CCZ Crystal R&D, MEMC Electronic Materials, Inc.
  • NAKATSUBO Shunichi
    Institute of Low Temperature Science, Hokkaido University
  • FURUKAWA Yoshinori
    Institute of Low Temperature Science, Hokkaido University

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Other Title
  • 氷結晶の表面融解過程の光学その場観察
  • 氷結晶の表面融解過程の光学その場観察 : 2種類の擬似液体層の出現
  • コオリ ケッショウ ノ ヒョウメン ユウカイ カテイ ノ コウガク ソノ バ カンサツ : 2シュルイ ノ ギジ エキタイソウ ノ シュツゲン
  • 2種類の擬似液体層の出現

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Abstract

<p>Ice plays a significantly important role in various phenomena because of its abundance on earth. However, it has been an experimental challenge to reveal the dynamic behaviors of quasi-liquid layers (QLLs), which dominate the surface properties of ice crystals at temperatures near the melting point. Hence, we tried to visualize the surface melting processes directly by advanced optical microscopy, which can visualize the individual 0.37-nm-thick elementary steps on ice crystal surfaces. We found that two types of QLL phases appear that exhibit different morphologies and dynamics. The two immiscible QLL phases emerged heterogeneously, moved around, and coalesced dynamically on ice crystal surfaces. This picture is quite different from the conventional understanding of surface melting.</p>

Journal

  • Oyo Buturi

    Oyo Buturi 82 (2), 150-153, 2013-02-10

    The Japan Society of Applied Physics

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