Journal
SCIENCE
Volume 340, Issue 6134, Pages 841-844Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1233621
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Funding
- Engineering and Physical Sciences Research Council [EP/C522877/1, EP/E0541129/1, EP/J022004/1]
- NSF [DMR-0806629, DMR-120991]
- European Microkelvin Consortium [228464]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1202991] Funding Source: National Science Foundation
- Engineering and Physical Sciences Research Council [EP/C522877/1, EP/E054129/1, EP/J022004/1] Funding Source: researchfish
- EPSRC [EP/E054129/1, EP/J022004/1] Funding Source: UKRI
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The superfluid phases of helium-3 (He-3) are predicted to be strongly influenced by mesoscopic confinement. However, mapping out the phase diagram in a confined geometry has been experimentally challenging. We confined a sample of He-3 within a nanofluidic cavity of precisely defined geometry, cooled it, and fingerprinted the order parameter using a sensitive nuclear magnetic resonance spectrometer. The measured suppression of the p-wave order parameter arising from surface scattering was consistent with the predictions of quasi-classical theory. Controlled confinement of nanofluidic samples provides a new laboratory for the study of topological superfluids and their surface-and edge-bound excitations.
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