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Phys. Rev. Lett. 83, 1367–1370 (1999)

Evidence for Superfluid B Phase of 3He in Aerogel

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H. Alles*, J. J. Kaplinsky, P. S. Wootton, J. D. Reppy†, J. H. Naish, and J. R. Hook
Schuster Laboratory, University of Manchester, Manchester M13 9PL, United Kingdom

Received 29 March 1999; published in the issue dated 16 August 1999

We have made simultaneous torsional oscillator and transverse cw NMR (at ∼165kHz) studies of the superfluid phase of 3He in aerogel glasses of 1% and 2% of solid density. NMR occurs over a range of frequency extending from the Larmor frequency to higher values, but is strongly peaked at the Larmor value. This behavior, together with the magnetic-field independence of the effective superfluid density, provides convincing evidence for a B-phase state with an n̂ texture, in our spherical geometry, governed by the same energetic considerations as for bulk superfluid 3He-B.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.1367
DOI:
10.1103/PhysRevLett.83.1367
PACS:
67.57.Pq, 67.57.Fg, 67.57.Lm

*Present address: Low Temperature Laboratory, Helsinki University of Technology, Otakaari 3A, SF-02150 Espoo, Finland.

†Present address: Department of Physics, Cornell University, Ithaca, NY 14853-2501.

 
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