It has been shown that the relative stabilities of various superfluid states of 3He can be influenced by anisotropy in a silica aerogel framework. We prepared a suite of aerogel samples compressed up to 30% for which we performed pulsed NMR on 3He imbibed within the aerogel. We identified A and B-phases and determined their magnetic field-temperature phase diagrams as a function of strain. From these results we infer that the B-phase is distorted by negative strain forming an anisotropic superfluid state more stable than the A-phase.
@article{arxiv.1501.03384,
title = {Anisotropic phases of superfluid 3He in compressed aerogel},
author = {J. I. A. Li and A. M. Zimmerman and J. Pollanen and C. A. Collett and W. P. Halperin},
journal= {arXiv preprint arXiv:1501.03384},
year = {2015}
}