Publications [#246158] of Haiyan Gao

Papers Published

1. Ye, Q; Dutta, D; Gao, H; al, E, Relaxation of spin polarized 3He in mixtures of 3He and 4He below the 4He Lambda point, Physical Review A, vol. 77 no. 5 (2008), pp. 053408, American Physical Society (APS), ISSN 1050-2947 [doi]
   (last updated on 2026/01/14)

   Abstract:
   We report a first study of the depolarization behavior of spin polarized H3 e in a mixture of H3 e- H4 e at a temperature below the H4 e λ point in a deuterated tetraphenyl butadiene-doped deuterated polystyrene (dTPB-dPS) coated acrylic cell. In our experiment the measured H3 e relaxation time is due to the convolution of the H3 e longitudinal relaxation time, T1, and the diffusion time constant of H3 e in superfluid H4 e since depolarization takes place on the walls. We have obtained a H3 e relaxation time of ∼3000s at a temperature around 1.9 K. We have shown that it is possible to achieve values of wall depolarization probability on the order of (1-2) × 10-7 for polarized H3 e in the superfluid H4 e from a dTPB-dPS coated acrylic surface. © 2008 The American Physical Society.