The A-B transition in superfluid 3He under confinement in a thin slab geometry
| dc.contributor.author | Zhelev, Nikolay | |
| dc.contributor.author | Abhilash, Thanniyil Sebastian | |
| dc.contributor.author | Smith, Eric | |
| dc.contributor.author | Bennett, Robert | |
| dc.contributor.author | Rojas, Xavier | |
| dc.contributor.author | Levitin, Lev | |
| dc.contributor.author | Saunders, John | |
| dc.contributor.author | Parpia, Jeevak | |
| dc.date.accessioned | 2017-02-19T19:42:10Z | |
| dc.date.available | 2017-02-19T19:42:10Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | The influence of confinement on the topological phases of superfluid 3He is studied using the torsional pendulum method. We focus on the phase transition between the chiral A-phase and the time-reversal-invariant B-phase, motivated by the prediction of a spatially-modulated (stripe) phase at the A-B phase boundary. We confine superfluid 3He to a single 1.08 μm thick nanofluidic cavity incorporated into a high-precision torsion pendulum, and study the pressure dependence of the phase diagram between 0.1 and 5.6 bar. We observe only small supercooling of the A-phase, in comparison to bulk or when confined in aerogel. This has a non-monotonic pressure dependence, suggesting that a new intrinsic B-phase nucleation mechanism operates under confinement, mediated by the putative stripe phase. Both the pressure dependence of the phase diagram and the relative superfluid fraction of the A and B phases, show that strong coupling is present at all pressures, with implications for the stability of the stripe phase. | en_US |
| dc.identifier.uri | https://hdl.handle.net/1813/46294 | |
| dc.language.iso | en_US | en_US |
| dc.rights | Attribution-NonCommercial 4.0 International | * |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc/4.0/ | * |
| dc.subject | Helium-3, confinement, thin films, nanofluidic cell | en_US |
| dc.title | The A-B transition in superfluid 3He under confinement in a thin slab geometry | en_US |
| dc.type | dataset | en_US |
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