科研之友
微信
新浪微博
Facebook
分享链接
摘要
We report results of spin diffusion measurements in normal phase of liquid He-3 confined in nafen. Nafen is a new type of aerogel and it consists of Al2O3 strands, which are nearly parallel to one another at macroscopic distances. We examine two samples of nafen with different porosities using spin echo techniques. Spin diffusion of He-3 along and across the strands was measured. The aerogel alignment is evident from observed spin diffusion anisotropy. A theory describing this effect is developed and compared with the experiment.
- 出版日期2015-6
