Search Results - "R. P. Haley"
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1
Thermal Transport in Nanoelectronic Devices Cooled by On-Chip Magnetic Refrigeration
Published in Physical review letters (18-08-2023)Get full text
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2
Fundamental dissipation due to bound fermions in the zero-temperature limit
Published in Nature communications (21-09-2020)“…The ground state of a fermionic condensate is well protected against perturbations in the presence of an isotropic gap. Regions of gap suppression, surfaces…”
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Nanoelectronic primary thermometry below 4 mK
Published in Nature communications (27-01-2016)“…Cooling nanoelectronic structures to millikelvin temperatures presents extreme challenges in maintaining thermal contact between the electrons in the device…”
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Operating Nanobeams in a Quantum Fluid
Published in Scientific reports (07-07-2017)“…Microelectromechanical (MEMS) and nanoelectromechanical systems (NEMS) are ideal candidates for exploring quantum fluids, since they can be manufactured…”
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Erratum: Nanoelectronic primary thermometry below 4 mK
Published in Nature communications (03-06-2016)“…Nature Communications 7: Article number: 10455 (2016); Published: 27 January 2016; Updated: 3 June 2016 The affiliation details for L. Roschier are incorrect…”
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Shear flow and Kelvin-Helmholtz instability in superfluids
Published in Physical review letters (07-10-2002)“…The first realization of instabilities in the shear flow between two superfluids is examined. The interface separating the A and B phases of superfluid 3He is…”
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Effort has a greater effect on test scores than severe brain injury in compensation claimants
Published in Brain injury (01-12-2001)“…Nine-hundred and four consecutive patients, including 80 neurological patients and 470 with head injuries, were given neuropsychological tests. All 43 test…”
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Relic topological defects from brane annihilation simulated in superfluid 3He
Published in Nature physics (2008)“…Although it is widely accepted that to resolve the ‘horizon’ problem the early Universe must have undergone a sudden expansion (cosmic inflation), what…”
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Anomalous Damping of a Low Frequency Vibrating Wire in Superfluid 3He-B due to Vortex Shielding
Published in Journal of low temperature physics (01-04-2014)“…We have investigated the behaviour of a large vibrating wire resonator in the B-phase of superfluid 3 He at zero pressure and at temperatures below 200 μK. The…”
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Drag on Cylinders Moving in Superfluid 3 He-B as the Dimension Spans the Coherence Length
Published in Journal of low temperature physics (01-10-2024)“…Vibrating probes when immersed in a fluid can provide powerful tools for characterising the surrounding medium. In superfluid He-B, a condensate of Cooper…”
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Progress in Cooling Nanoelectronic Devices to Ultra-Low Temperatures
Published in Journal of low temperature physics (01-12-2020)“…Here we review recent progress in cooling micro-/nanoelectronic devices significantly below 10 mK. A number of groups worldwide are working to produce…”
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Drag on Cylinders Moving in Superfluid 3He-B as the Dimension Spans the Coherence Length
Published in Journal of low temperature physics (2024)“…Vibrating probes when immersed in a fluid can provide powerful tools for characterising the surrounding medium. In superfluid 3 He-B, a condensate of Cooper…”
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13
Thermometry in Normal Liquid 3He Using a Quartz Tuning Fork Viscometer
Published in Journal of low temperature physics (01-06-2013)“…We have developed the use of quartz tuning forks for thermometry in normal liquid 3 He. We have used a standard 32 kHz tuning fork to measure the viscosity of…”
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14
QUEST-DMC superfluid 3He detector for sub-GeV dark matter
Published in The European physical journal. C, Particles and fields (08-03-2024)“…The focus of dark matter searches to date has been on Weakly Interacting Massive Particles (WIMPs) in the GeV/ c 2 -TeV/ c 2 mass range. The direct, indirect…”
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15
Breaking the superfluid speed limit in a fermionic condensate
Published in Nature physics (01-11-2016)“…An experiment reports the unexpected behaviour of an object in uniform motion in superfluid helium-3 above the Landau critical velocity — the limit above which…”
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Progress on Levitating a Sphere in Cryogenic Fluids
Published in Journal of low temperature physics (01-09-2023)“…We present the working prototype of a levitation system designed for investigation of flows in cryogenic helium fluids. The current device allows the…”
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On-chip magnetic cooling of a nanoelectronic device
Published in Scientific reports (04-04-2017)“…We demonstrate significant cooling of electrons in a nanostructure below 10 mK by demagnetisation of thin-film copper on a silicon chip. Our approach overcomes…”
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Multimode probing of superfluid 4He by tuning forks
Published in Applied physics letters (09-09-2019)“…Flexural mode vibrations of miniature piezoelectric tuning forks (TFs) are known to be highly sensitive to superfluid excitations and quantum turbulence in 3He…”
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Graphene-based tunable SQUIDs
Published in Applied physics letters (17-04-2017)“…The superconducting proximity effect in graphene can be used to create Josephson junctions with critical currents that can be tuned using local field-effect…”
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History Dependence of Turbulence Generated by a Vibrating Wire in Superfluid 4He at 1.5 K
Published in Journal of low temperature physics (01-02-2011)“…We report on the onset of turbulence in normal and superfluid 4 He using several 13.5 μm diameter vibrating wire resonators placed in a cell, filtered from the…”
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