氦单晶的非经典转动惯量
Nonclassical Rotational Inertia in Single Crystal Helium
摘要：
有人提出，观察到的非经典转动惯量（NCRI）在固体氦的结果从超流的薄液膜沿互连的晶界内的样品。我们已经进行了新的扭转振荡器测量下生长的大氦晶体恒温恒压。我们观察到NCRI在所有样品中，表明这种现象不能解释沿晶界流动的超流膜。
英文摘要：
It has been proposed that the observed nonclassical rotational inertia (NCRI) in solid helium results from the superflow of thin liquid films along interconnected grain boundaries within the sample. We have carried out new torsional oscillator measurements on large helium crystals grown under constant temperature and pressure. We observe NCRI in all samples, indicating that the phenomenon cannot be explained by a superfluid film flowing along grain boundaries.
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