Plasticky ice

IF 18.4 1区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Nature Physics Pub Date : 2025-04-11 DOI:10.1038/s41567-025-02891-z
Debarchan Das
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以前的实验结果和模拟结果之间的差异导致研究人员质疑这一阶段的存在。主要困难在于如何检测这种明显的相变,因为它主要受氢动力学变化而非结构转变的影响。为了规避这一问题,研究小组利用准弹性中子散射测量来研究水的动力学,这种测量方法将入射中子光谱的拓宽与样品中的分子运动联系起来。Rescigno 及其同事在 450-600 K 的温度范围和高达 6 GPa 的压力下进行了这些实验。结果表明,在这些条件下,水冰采用了体心立方结构。此外,研究小组还发现,水分子在保持晶体结构的同时,在皮秒时间尺度上表现出类似液体的旋转运动。因此,整体信号显示出结晶结构与活跃的分子运动相结合,这正是塑性冰 VII 相的主要特征。
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来源期刊
Nature Physics
Nature Physics 物理-物理:综合
CiteScore
30.40
自引率
2.00%
发文量
349
审稿时长
4-8 weeks
期刊介绍: Nature Physics is dedicated to publishing top-tier original research in physics with a fair and rigorous review process. It provides high visibility and access to a broad readership, maintaining high standards in copy editing and production, ensuring rapid publication, and maintaining independence from academic societies and other vested interests. The journal presents two main research paper formats: Letters and Articles. Alongside primary research, Nature Physics serves as a central source for valuable information within the physics community through Review Articles, News & Views, Research Highlights covering crucial developments across the physics literature, Commentaries, Book Reviews, and Correspondence.
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