3He Spin Diffusion Measurements for 3He - 4He Mixture Films on Nuclepore

Preliminary3He spin diffusion results for3He - 4He mixture films on Nuclepore are presented as a function of3He coverage for 0.1 ≤ T ≤ 0.3 K. We report measurements for a constant4He coverage of 4.41 bulk density atomic layers with3He coverages between 0.3 and 2.1 layers. The diffusion is observed to decrease with increasing amounts of3He, and some structure as a function of temperature is present.