Effect of Magnetic Scattering on the {sup 3}He Superfluid State in Aerogel

Journal Article · Thu Oct 31 23:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.4568· OSTI ID:399862

Sprague, D; Haard, T; Kycia, J; Rand, M; Lee, Y; Hamot, P; Halperin, W ^[1]

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1. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208 (United States)

Pure {sup 3}He in highly porous aerogel forms an equal-spin pairing superfluid with transition temperatures suppressed from bulk values. We have measured the magnetic field dependence of the transition temperature from which it can be inferred that both magnetic and nonmagnetic quasiparticle scattering from solid {sup 3}He at the aerogel surface is important to the superfluid state. Replacement of the solid {sup 3}He on the surface of the aerogel with {sup 4}He gives rise to a unequal spin pairing superfluid phase. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 399862
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 22 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
GELS
HELIUM 3
MAGNETIC FIELDS
POROUS MATERIALS
RESONANCE
SCATTERING
SUPERFLUIDITY
TRANSITION TEMPERATURE