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dc.contributor.authorSenesi, R
dc.contributor.authorAndreani, C
dc.contributor.authorFielding, AL
dc.contributor.authorMayers, J
dc.contributor.authorStirling, WG
dc.date.accessioned2018-07-27T14:29:35Z
dc.date.issued2003-12
dc.identifier21
dc.identifier.citationPHYSICAL REVIEW B, 2003, 68
dc.identifier.issn1098-0121
dc.identifier.urihttps://repository.icr.ac.uk/handle/internal/2201
dc.identifier.eissn1550-235X
dc.identifier.doi10.1103/PhysRevB.68.214522
dc.description.abstractDeep inelastic neutron scattering measurements on liquid He-3-He-4 mixtures in the normal phase have been performed on the VESUVIO spectrometer at the ISIS pulsed neutron source at exchanged wave vectors of about qsimilar or equal to120.0 Angstrom(-1). The neutron Compton profiles J(y) of the mixtures were measured along the T=1.96 K isotherm for He-3 concentrations, x, ranging from 0.1 to 1.0 at saturated vapor pressures. Values of kinetic energies <T> of He-3 and He-4 atoms as a function of x, <T>(x), were extracted from the second moment of J(y). The present determinations of <T>(x) confirm previous experimental findings for both isotopes and, in the case of He-3, a substantial disagreement with theory is found. In particular <T>(x) for the He-3 atoms is found to be independent of concentration yielding a value <T>(3)(x=0.1)similar or equal to12 K, much lower than the value suggested by the most recent theoretical estimates of approximately 19 K.
dc.languageeng
dc.language.isoeng
dc.publisherAMER PHYSICAL SOC
dc.titleKinetic energy of He atoms in liquid He-4-He-3 mixtures
dc.typeJournal Article
rioxxterms.versionofrecord10.1103/PhysRevB.68.214522
rioxxterms.licenseref.startdate2003-12
rioxxterms.typeJournal Article/Review
dc.relation.isPartOfPHYSICAL REVIEW B
pubs.notesaffiliation: Senesi, R (Reprint Author), UdR Roma Tor Vergata, Ist Nazl Fis Mat, Via Ric Sci 1, I-00133 Rome, Italy. UdR Roma Tor Vergata, Ist Nazl Fis Mat, I-00133 Rome, Italy. Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy. Ist Nazl Fis Mat, I-00133 Rome, Italy. Inst Canc Res, Joint Dept Phys, Sutton SM2 5PT, Surrey, England. Royal Marsden Hosp, Sutton SM2 5PT, Surrey, England. Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England. European Synchrotron Radiat Facil, F-38043 Grenoble, France. Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England. article-number: 214522 keywords-plus: INELASTIC NEUTRON-SCATTERING; HE-3-HE-4 MIXTURES; MONTE-CARLO; MOMENTUM DISTRIBUTIONS; MULTIPLE-SCATTERING; HELIUM MIXTURES; SPECTROMETER; CONDENSATE; VESUVIO; STATE research-areas: Physics web-of-science-categories: Physics, Condensed Matter author-email: [email protected] researcherid-numbers: senesi, roberto/C-9472-2013 Fielding, Andrew/J-1020-2012 andreani, carla/E-9507-2012 orcid-numbers: senesi, roberto/0000-0002-5620-1165 Fielding, Andrew/0000-0001-9955-4609 number-of-cited-references: 37 times-cited: 9 usage-count-last-180-days: 0 usage-count-since-2013: 3 journal-iso: Phys. Rev. B doc-delivery-number: 762JD unique-id: ISI:000187967700087 da: 2018-07-27
pubs.notesNot known
pubs.organisational-group/ICR
pubs.organisational-group/ICR
pubs.volume68
pubs.embargo.termsNot known
dc.contributor.icrauthorFielding,en


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