43 citations · 124 across the 9 of their papers we have counts for
9 papers
Magnetic Confinement of a Bubble of Supercooled He-A
Luke Whitehead, Andrew Casey, Richard P. Haley +9
We have designed and constructed a magnet surrounding a cylindrical volume of superfluid helium-3 to isolate a region of metastable, supercooled A-phase, entirely surrounded by bul…
Chiral superfluid helium-3 in the quasi-two-dimensional limit
Petri J. Heikkinen, Lev V. Levitin, Xavier Rojas +8
Anisotropic pair breaking close to surfaces favors the chiral A phase of the superfluid He over the time-reversal invariant B phase. Confining the superfluid He into a cavi…
QUEST-DMC: Background Modelling and Resulting Heat Deposit for a Superfluid Helium-3 Bolometer
S. Autti, A. Casey, N. Eng +21
We report the results of radioactivity assays and heat leak calculations for a range of common cryogenic materials, considered for use in the QUEST-DMC superfluid 3He dark matter d…
Nanofluidic platform for studying the first-order phase transitions in superfluid helium-3
Petri J. Heikkinen, Nathan Eng, Lev V. Levitin +9
The symmetry-breaking first-order phase transition between superfluid phases He-A and He-B can be triggered extrinsically by ionising radiation or heterogeneous nucleation…
Long nanomechanical resonators with circular cross-section
Samuli Autti, Andrew Casey, Marie Connelly +23
Fabrication of superconducting nanomechanical resonators for quantum research, detectors and devices traditionally relies on a lithographic process, resulting in oscillators with s…
QUEST-DMC superfluid He detector for sub-GeV dark matter
S. Autti, A. Casey, N. Eng +22
The focus of dark matter searches to date has been on Weakly Interacting Massive Particles (WIMPs) in the GeV/-TeV/ mass range. The direct, indirect and collider searches…
Fragility of surface states in topological superfluid He
P. J. Heikkinen, A. Casey, L. V. Levitin +6
Topological superfluid He, with unconventional spin-triplet p-wave pairing, provides a model system for topological superconductors, which have attracted significant interest t…
Fabrication of micro fluidic cavities using Si-to-glass anodic bonding
N. Zhelev, T. S. Abhilash, R. G. Bennett +7
We demonstrate the fabrication of 1.08 m deep microfluidic cavities with characteristic size as large as 7 mm 11 mm or 11 mm diameter, using a siliconglass ano…
The A-B transition in superfluid 3He under confinement in a thin slab geometry
N. Zhelev, T. S. Abhilash, E. N. Smith +5
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…