Phase-transition phenomena of 0.8 microm superfluid 3He slab.
Phase-transition phenomena of 0.8 microm superfluid 3He slab.
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0.8微米超流体3He板的相变现象。
DOI：
10.1103/physrevlett.93.105301
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发表时间：
2004
影响因子：
8.6
通讯作者：
T. Hata
中科院分区：
文献类型：
--
作者：
K. Kawasaki;Tomohiro Yoshida;Miki Tarui;H. Nakagawa;H. Yano;O. Ishikawa;T. Hata
用核磁共振方法研究了0.8微米薄板中超流体3He的跃迁现象。我们发现，在任何压强下，只要低于相变温度，就只有A相出现。在较低温度下，相变发生在0.3 ~ 2.74 MPa之间。我们得到了一个通用的临界厚度delta作为压力的函数。当减薄板厚度d/xi(T)小于δ时，只有A相稳定。
We have investigated the transition phenomena of superfluid 3He in thin 0.8 microm slabs with a cw-NMR method. We found that, just below the phase-transition temperature, only the A phase appeared at any pressure. At lower temperatures, the phase transition to the B phase occurred between 0.3 and 2.74 MPa. We obtained a universal critical thickness delta as a function of pressure. When the reduced slab thickness, d/xi(T), is smaller than delta, only the A phase becomes stable.