论文标题
超级流体3HE中振荡的列明气凝胶
Oscillating nematic aerogel in superfluid 3He
论文作者
论文摘要
我们介绍了有关超氟$^3 $ HE的nematic Airbel振荡的实验。该气凝胶由几乎平行的mullite链组成，并连接到沿链方向移动的振动线上。他限制在类似的气凝胶样品中的$^3 $中的先前的核磁共振实验表明，$^3 $ HE在气凝地中的超氟转变发生到极性相位，并且过渡温度（$ t_ {ca} $）仅在相对于散装温度的超级流体过渡温度而略微抑制。在目前的实验中，我们观察到$ t = t_ {ca} $在$ t = t_ {ca} $下方的振动线的谐振属性变化，一种额外的共振模式令人兴奋，这与主要共振相结合。
We present experiments on nematic aerogel oscillating in superfluid $^3$He. This aerogel consists of nearly parallel mullite strands and is attached to a vibrating wire moving along the direction of the strands. Previous nuclear magnetic resonance experiments in $^3$He confined in similar aerogel sample have shown that the superfluid transition of $^3$He in aerogel occurs into the polar phase and the transition temperature ($T_{ca}$) is only slightly suppressed with respect to the superfluid transition temperature of bulk $^3$He. In present experiments we observed a change in resonant properties of the vibrating wire at $T=T_{ca}$ and found that below $T_{ca}$ an additional resonance mode is excited which is coupled to the main resonance.
