Unresolved problems in the superfluid phases of [sup 3]He

The early studies of the superfluid phases of [sup 3]He were marked by often spectacular agreements between theoretical predictions and experimental results. Nevertheless, several experiments have failed to achieve either agreement with the prevailing theory of consistency with each other - and impr...

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Bibliographic Details
Published inJournal of Low Temperature Physics; (United States) Vol. 89:1-2
Main Authors Bozler, H.M., Saundry, P.D., Hahn, I., Boyd, S.T.P., Gould, C.M.
Format Conference Proceeding
LanguageEnglish
Published United States 01.10.1992
Subjects
665420 - Superfluidity- (1992-)
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
EVEN-ODD NUCLEI
HELIUM 3
HELIUM 3 A
HELIUM 3 B
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MAGNETIZATION
NUCLEI
PHASE TRANSFORMATIONS
STABILITY
STABLE ISOTOPES
SUPERFLUIDITY
TEXTURE
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Summary:The early studies of the superfluid phases of [sup 3]He were marked by often spectacular agreements between theoretical predictions and experimental results. Nevertheless, several experiments have failed to achieve either agreement with the prevailing theory of consistency with each other - and improved experiments do not remove these discrepancies. The authors discuss two recent experiments at U.S.C. which indicate that there remain fundamental questions beyond experimental uncertainties. One of these is the stability of superflow in a complex texture in the A-phase. Experimental evidence indicates that superflow may actually be stabilized by the existence of a texture. The other is the long-standing discrepancy between static (SQUID) and dynamic (NMR) measurements of the magnetization discontinuity at the A-B transition. The authors recent experiments using a first principles measurement of [Delta]M support the continued existence of the discrepancy.
Bibliography:CONF-9206305-Pt.1
ISSN:0022-2291
1573-7357