Evidence for a Spatially Modulated Superfluid Phase of He 3 under Confinement
Abstract
In superfluid He3-B confined in a slab geometry, domain walls between regions of different order parameter orientation are predicted to be energetically stable. Formation of the spatially modulated superfluid stripe phase has been proposed. We confined He3 in a 1.1 μm high microfluidic cavity and cooled it into the B phase at low pressure, where the stripe phase is predicted. We measured the surface-induced order parameter distortion with NMR, sensitive to the formation of domains. The results rule out the stripe phase, but are consistent with 2D modulated superfluid order. © 2019 American Physical Society.
Date Published
Journal
Physical Review Letters
Volume
122
Issue
8
URL
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85062258915&doi=10.1103%2fPhysRevLett.122.085301&partnerID=40&md5=7c1509ab4cd9763de423261d9255f3d2
DOI
10.1103/PhysRevLett.122.085301
Research Area
Group (Lab)
Jeevak Parpia Group
Funding Source
1202991
1708341
824109
10.13039/501100000266
EP/R04533X/1
EP/R04533X/1
EP/J022004/1
DMR-1202991
DMR-1708341
10.13039/100000001
DMR-1202991
DMR-1708341