Phase diagram of superfluid 3He in "nematically ordered" aerogel

TL;DR

This study explores the superfluid phases of liquid 3He in a novel nematically ordered aerogel, revealing a superfluid transition at all pressures and mapping its phase diagram.

Contribution

It introduces a new type of aerogel with nearly parallel strands and investigates its effects on superfluid 3He, providing experimental phase diagrams and phase structure discussions.

Findings

Superfluid transition observed at all pressures

Mapped superfluid phase diagram in nematically ordered aerogel

Discussed possible superfluid phase structures

Abstract

Results of experiments with liquid 3He immersed in a new type of aerogel are described. This aerogel consists of Al2O3 strands which are nearly parallel to each other, so we call it as a "nematically ordered" aerogel. At all used pressures a superfluid transition was observed and a superfluid phase diagram was measured. Possible structures of the observed superfluid phases are discussed.