Stability of the axial phase of superfluid He3 in aerogel with globally anisotropic scattering

J. P. Davis, J. Pollanen, B. Reddy, K. R. Shirer, H. Choi, William P Halperin

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

It has been suggested that anisotropic quasiparticle scattering will stabilize anisotropic phases of superfluid He3 contained within a highly porous silica aerogel. For example, global anisotropy introduced via uniaxial compression of aerogel might stabilize the axial state, which is called the A -phase in bulk superfluid He3. Here, we present measurements of the phase diagram of superfluid He3 in a 98% porous silica aerogel by using transverse acoustic impedance methods. We show that uniaxial compression of the aerogel by 17% does not stabilize an axial phase.

Original languageEnglish (US)
Article number140502
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume77
Issue number14
DOIs
StatePublished - Apr 3 2008

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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