Abstract
We present the first observation of substantial persistent flow in superfluid He{sup 3}-A in thick simply connected slabs in a zero magnetic field, but only in l-circumflex textures with domain walls. The flow is induced in a rotating cryostat using a torsional oscillator as a probe. The hysteretic dependences of the trapped vorticity on the maximal angular velocity of rotation are fairly universal for different densities of domain walls and slab thicknesses. A model of a critical state set by either the critical velocity for vortex nucleation or pinning strength explains all observations.
Walmsley, P M;
White, I J;
Golov, A I
[1]
- Department of Physics and Astronomy, Manchester University, Manchester (United Kingdom)
Citation Formats
Walmsley, P M, White, I J, and Golov, A I.
Intrinsic pinning of vorticity by domain walls of l-circumflex texture in superfluid He{sup 3}-A.
United States: N. p.,
2004.
Web.
doi:10.1103/PhysRevLett.93.195301.
Walmsley, P M, White, I J, & Golov, A I.
Intrinsic pinning of vorticity by domain walls of l-circumflex texture in superfluid He{sup 3}-A.
United States.
https://doi.org/10.1103/PhysRevLett.93.195301
Walmsley, P M, White, I J, and Golov, A I.
2004.
"Intrinsic pinning of vorticity by domain walls of l-circumflex texture in superfluid He{sup 3}-A."
United States.
https://doi.org/10.1103/PhysRevLett.93.195301.
@misc{etde_20619317,
title = {Intrinsic pinning of vorticity by domain walls of l-circumflex texture in superfluid He{sup 3}-A}
author = {Walmsley, P M, White, I J, and Golov, A I}
abstractNote = {We present the first observation of substantial persistent flow in superfluid He{sup 3}-A in thick simply connected slabs in a zero magnetic field, but only in l-circumflex textures with domain walls. The flow is induced in a rotating cryostat using a torsional oscillator as a probe. The hysteretic dependences of the trapped vorticity on the maximal angular velocity of rotation are fairly universal for different densities of domain walls and slab thicknesses. A model of a critical state set by either the critical velocity for vortex nucleation or pinning strength explains all observations.}
doi = {10.1103/PhysRevLett.93.195301}
journal = []
issue = {19}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Nov}
}
title = {Intrinsic pinning of vorticity by domain walls of l-circumflex texture in superfluid He{sup 3}-A}
author = {Walmsley, P M, White, I J, and Golov, A I}
abstractNote = {We present the first observation of substantial persistent flow in superfluid He{sup 3}-A in thick simply connected slabs in a zero magnetic field, but only in l-circumflex textures with domain walls. The flow is induced in a rotating cryostat using a torsional oscillator as a probe. The hysteretic dependences of the trapped vorticity on the maximal angular velocity of rotation are fairly universal for different densities of domain walls and slab thicknesses. A model of a critical state set by either the critical velocity for vortex nucleation or pinning strength explains all observations.}
doi = {10.1103/PhysRevLett.93.195301}
journal = []
issue = {19}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Nov}
}