SuperfluidHe3in Narrow Cylinders

Abstract

Textures of superfluid ${}_{}{}^3{}_{}{}^{}\mathrm{He}$-$A$ confined to 2-μm-diam cyclinders contain singular regions. We have observed and characterized at least two such textures with an external magnetic field parallel and perpendicular to the cylinders. We also found an unexpected effect of the cylinders on the transition from the $A$ to the $B$ phase.