相关实验视频
Updated: Jun 6, 2026

06:42
Magnetically Induced Rotating Rayleigh-Taylor Instability
Published on: March 3, 2017
在旋转的固体中,存在超固体性的证据
1Department of Physics and Center for Supersolid and Quantum Matter Research, KAIST, Daejeon 305-701, Republic of Korea.
概括
研究人员使用扭曲振荡器 (TO) 实验研究了-4的超固态性. 与旋转下的剪模同时进行的测量区分了超固体与经典效应的区别,证实了它的存在.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 量子流体和固体中的量子体.
背景情况:
- 超固体是固体中零粘度流的特征,最初是在-4扭转振荡器 (TO) 实验中观察到的.
- 归因于超流体脱的TO共振周期的减少,可以通过经典效应 (如温度依赖的弹性模量变化) 来掩盖.
研究的目的:
- 在固体中区分超固度和经典效应.
- 通过分析对叠加旋转的反应来验证超固度的存在.
主要方法:
- 对扭曲振荡器 (TO) 和固体的剪切模量进行了同时测量.
- 应用叠加旋转到振荡测量来观察系统响应.
主要成果:
- 观察到TO共振周期随着旋转速度的增加而发生显著变化.
- 切削模量保持不变,尽管在旋转下TO周期的变化.
结论:
- 旋转下TO周期和剪模的对比行为强烈地表明观察到的现象是由于超固体.
- 叠加旋转是区分真正的超固体行为与固体中的经典工件的关键方法.
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