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首页> 外文期刊>Physica, B. Condensed Matter >Magnetically stabilized AB interface in rotating superfluid He-3
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Magnetically stabilized AB interface in rotating superfluid He-3

机译:旋转超流体He-3中的磁稳定AB接口

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摘要

How do vortex lines in the A and B phases of superfluid He-3 interact at the AB phase boundary, when they have different structure and quantization in these two phases? We discuss an experimental setup where the AB interface is stabilized in a long cylindrical sample with a magnetic barrier field. It divides the sample in A- and B-phase sections which are maintained in homogeneous low-field NMR environments over the temperature interval where. the supercooled A phase exists. With two independent NMR spectrometers the vortex lines in the two phases can be studied as a function of the rotation velocity of the cryostat. Simultaneously, by adjusting the barrier field and temperature, the sample can be changed from single phase to two-phase configurations, or to one with two AB interfaces. Using this setup the first example of a shear-flow instability in superfluids was discovered (Phys. Rev. Lett. 89 (2002) 155 301). (C) 2003 Elsevier Science B.V. All rights reserved. [References: 2]
机译:当He-3的A相和B相中的涡流线在两个相中具有不同的结构和量化方式时,它们如何在AB相边界处相互作用?我们讨论了一个实验设置,其中AB接口在具有磁障场的长圆柱形样品中稳定。它将样品分为A相和B相部分,并在一定温度区间内保持在均质的低场NMR环境中。存在过冷的A相。使用两个独立的NMR光谱仪,可以根据低温恒温器的转速研究两个相中的涡旋线。同时,通过调节势垒场和温度,可以将样品从单相配置更改为两相配置,也可以将其更改为具有两个AB接口的配置。使用这种设置,发现了超流体中剪切流不稳定性的第一个例子(Phys。Rev. Lett。89(2002)155 301)。 (C)2003 Elsevier Science B.V.保留所有权利。 [参考:2]

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