Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Non-linear mechanical response of the a-like phase of superfluid He-3 in aerogel.
AU - Bradley, D. Ian
AU - Fisher, Shaun N.
AU - Guénault, A.M.
AU - Haley, Richard P.
AU - Pickett, George R.
AU - Roberts, John Edward
AU - O'Sullivan, Samantha
AU - Tsepelin, Viktor
PY - 2007/9
Y1 - 2007/9
N2 - We present measurements of the response of the A-like phase of superfluid He-3 in aerogel to an applied flow. The measurements are made using a cylindrical piece of 98% silica aerogel attached to a vibrating wire resonator. The resonator is immersed in superfluid He-3 at low temperatures and relatively high magnetic fields such that the aerogel confined superfluid is in the A-like phase, while the surrounding fluid is in the bulk B-phase. We observe a variety of interesting non-linear and hysteretic effects when the resonator is driven to higher velocities. We present some of our preliminary findings and speculate on their implications.
AB - We present measurements of the response of the A-like phase of superfluid He-3 in aerogel to an applied flow. The measurements are made using a cylindrical piece of 98% silica aerogel attached to a vibrating wire resonator. The resonator is immersed in superfluid He-3 at low temperatures and relatively high magnetic fields such that the aerogel confined superfluid is in the A-like phase, while the surrounding fluid is in the bulk B-phase. We observe a variety of interesting non-linear and hysteretic effects when the resonator is driven to higher velocities. We present some of our preliminary findings and speculate on their implications.
U2 - 10.1007/s10909-007-9486-7
DO - 10.1007/s10909-007-9486-7
M3 - Journal article
VL - 148
SP - 603
EP - 607
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
SN - 0022-2291
IS - 5-6
ER -