FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2085169318> ?p ?o ?g. }

• W2085169318 endingPage "606" @default.
• W2085169318 startingPage "537" @default.
• W2085169318 abstract "We have investigated the rate v at which negative ions nucleate charged vortex rings in a series of extremely dilute superfluid 3 He/ 4 He solutions. Measurements of v were made at a pressure P = 23 bar (23 x 105 Pa) for temperatures, T , electric fields, E , and 3 He/ 4 He isotopic ratios, x 3 , within the ranges: 0.33 < T <0.61 K, 1.0 x 10 4 < E < 1.5 x 10 6 V m -1 , 2.1 x 10 -8 < x 3 < 1.7 x 10 -7 . A few data were also recorded at other pressures within the range 19 < P < 25 bar. For each concentration, and also for nominally pure 4 He ( x 3 = 1.9 x 10 -10 ), v was measured for the same set of E and T . For all the chosen values of x 3 and P , the form of v ( E, T ) was qualitatively much the same, and considerably more complicated than for pure 4 He. It was found that v became equal to the nucleation rate in pure 4 He for large , but that for smaller values of E at low T . The 3 He-influenced contribution to the overall nucleation rate, A v = v — v 0 , passed through a pronounced maximum at a value of E that increased with increasing T ; but the magnitude of A v itself decreased rapidly with increasing T . Plots of v against x 3 for fixed P, E and T show a marked upward curvature for the lower values of E and T , but become linear within experimental error above ca . 0.5 K. A model is proposed (in two variants) in which the complicated behaviour of v ( E, T ) is accounted for in terms of changes in the average occupancy by 3 He atoms of trapping states on the surface of the ion, it being proposed that the nucleation rate v 1 , due to ions each having one trapped 3 He atom, is very much greater than v 0 for bare ions. The nonlinearities in v ( x 3 ) are interpreted in terms of the simultaneous trapping of two (or more) 3 He atoms on a significant fraction of the ions. It is shown that the model can be fitted closely to the experimental data, thereby yielding numerical values of v 1 )of the 3 He binding energy on the ion, and of a number of other relevant quantities. From the form of v 1 ( E ), it is deduced that the addition of a 3 He atom to a bare ion affects its propensity to create vortex rings in two ways: the critical velocity for the process is reduced by ca . 4 m s -1 , and the rate constant is increased by a factor of ca . 10 3 . The implications of these results for microscopic theories of the vortex nucleation mechanism are discussed." @default.
• W2085169318 created "2016-06-24" @default.
• W2085169318 creator A5012518549 @default.
• W2085169318 creator A5028907771 @default.
• W2085169318 creator A5046677258 @default.
• W2085169318 date "1985-05-30" @default.
• W2085169318 modified "2023-09-23" @default.
• W2085169318 title "The breakdown of superfluidity in liquid ⁴ He. IV. Influence of ³ He isotopic impurities on the nucleation of quantized vortex rings" @default.
• W2085169318 cites W1966408878 @default.
• W2085169318 cites W1970743395 @default.
• W2085169318 cites W1983108818 @default.
• W2085169318 cites W1985253576 @default.
• W2085169318 cites W1987680303 @default.
• W2085169318 cites W1992751541 @default.
• W2085169318 cites W2014097304 @default.
• W2085169318 cites W2031630016 @default.
• W2085169318 cites W2033906839 @default.
• W2085169318 cites W2040820937 @default.
• W2085169318 cites W2054843381 @default.
• W2085169318 cites W2060699717 @default.
• W2085169318 cites W2070908615 @default.
• W2085169318 cites W2072143353 @default.
• W2085169318 cites W2083404722 @default.
• W2085169318 cites W2124524410 @default.
• W2085169318 cites W2134847735 @default.
• W2085169318 cites W2140004111 @default.
• W2085169318 cites W2160799481 @default.
• W2085169318 cites W2228267810 @default.
• W2085169318 cites W2236908697 @default.
• W2085169318 cites W2333263945 @default.
• W2085169318 cites W4230140929 @default.
• W2085169318 cites W952914152 @default.
• W2085169318 doi "https://doi.org/10.1098/rsta.1985.0003" @default.
• W2085169318 hasPublicationYear "1985" @default.
• W2085169318 type Work @default.
• W2085169318 sameAs 2085169318 @default.
• W2085169318 citedByCount "53" @default.
• W2085169318 countsByYear W20851693182023 @default.
• W2085169318 crossrefType "journal-article" @default.
• W2085169318 hasAuthorship W2085169318A5012518549 @default.
• W2085169318 hasAuthorship W2085169318A5028907771 @default.
• W2085169318 hasAuthorship W2085169318A5046677258 @default.
• W2085169318 hasConcept C113196181 @default.
• W2085169318 hasConcept C121332964 @default.
• W2085169318 hasConcept C153294291 @default.
• W2085169318 hasConcept C185592680 @default.
• W2085169318 hasConcept C188721877 @default.
• W2085169318 hasConcept C25536358 @default.
• W2085169318 hasConcept C26873012 @default.
• W2085169318 hasConcept C43617362 @default.
• W2085169318 hasConcept C61048295 @default.
• W2085169318 hasConcept C62520636 @default.
• W2085169318 hasConcept C71987851 @default.
• W2085169318 hasConcept C97355855 @default.
• W2085169318 hasConceptScore W2085169318C113196181 @default.
• W2085169318 hasConceptScore W2085169318C121332964 @default.
• W2085169318 hasConceptScore W2085169318C153294291 @default.
• W2085169318 hasConceptScore W2085169318C185592680 @default.
• W2085169318 hasConceptScore W2085169318C188721877 @default.
• W2085169318 hasConceptScore W2085169318C25536358 @default.
• W2085169318 hasConceptScore W2085169318C26873012 @default.
• W2085169318 hasConceptScore W2085169318C43617362 @default.
• W2085169318 hasConceptScore W2085169318C61048295 @default.
• W2085169318 hasConceptScore W2085169318C62520636 @default.
• W2085169318 hasConceptScore W2085169318C71987851 @default.
• W2085169318 hasConceptScore W2085169318C97355855 @default.
• W2085169318 hasIssue "1527" @default.
• W2085169318 hasLocation W20851693181 @default.
• W2085169318 hasOpenAccess W2085169318 @default.
• W2085169318 hasPrimaryLocation W20851693181 @default.
• W2085169318 hasRelatedWork W1999272505 @default.
• W2085169318 hasRelatedWork W2008235193 @default.
• W2085169318 hasRelatedWork W2054433969 @default.
• W2085169318 hasRelatedWork W2092196613 @default.
• W2085169318 hasRelatedWork W2108324109 @default.
• W2085169318 hasRelatedWork W2372114590 @default.
• W2085169318 hasRelatedWork W3023318409 @default.
• W2085169318 hasRelatedWork W3085021371 @default.
• W2085169318 hasRelatedWork W4375950826 @default.
• W2085169318 hasRelatedWork W945880122 @default.
• W2085169318 hasVolume "313" @default.
• W2085169318 isParatext "false" @default.
• W2085169318 isRetracted "false" @default.
• W2085169318 magId "2085169318" @default.
• W2085169318 workType "article" @default.