Vortex-antivortex lattice in superfluid films.

Vortex-antivortex lattice in superfluid films.
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超流膜中的涡流-反涡流晶格。

DOI:
10.1103/physrevlett.71.2142
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发表时间:
1993
影响因子:
8.6
通讯作者:
Zhang
Zhang
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Zhang

文献摘要

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在最近的一个实验中,陈,Roesler,和Mochel,在氢表面上的超流体4 He膜中发现了一个新的转变,其转变温度低于Kosterlitz-Schloss转变温度。我们认为,这两个转变之间的中间相是一个格子形式的超流涡和反涡。横向声子模式或该晶格被识别为第三次声音测量中检测到的«额外模式»
In a recent experiment by Chen, Roesler, and Mochel, a new transition was found in the superlluid 4 He film on a hydrogen surface, with a transition temperature below the Kosterlitz-Thouless transition temperature. We suggest that the intermediate phase between these two transitions is a lattice form by the superfluid vortices and antivortices. The transverse phonon mode or this lattice is identified with the «extra mode» detected in the third sound measurement