Zobrazeno 1 - 10
of 23
pro vyhledávání: '"D. J. Cousins"'
Publikováno v:
Journal of Physics and Chemistry of Solids. 66:1339-1343
Using a rotating nuclear demagnetization cryostat, we studied flow-induced nucleation, pinning and annihilation of continuous vortices in superfluid 3He–A in zero magnetic field. Two disk-shaped slabs of 3He–A of radius 5 mm and thicknesses 0.26
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::569ff70417b7c9b6f1ec825b5aa82c13
https://doi.org/10.1016/j.jpcs.2005.05.008
https://doi.org/10.1016/j.jpcs.2005.05.008
Publikováno v:
Journal of Low Temperature Physics. 134:363-368
The operation of a torsional oscillator for detection, of flow-driven textural transitions in, 3He-A is described. The detection technique, tracking the shift of the resonant frequency of the torsional oscillator, allows us to observe textural change
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0145a58dd85ecd19ce0f7a1a644b30f
https://doi.org/10.1023/b:jolt.0000012580.70503.95
https://doi.org/10.1023/b:jolt.0000012580.70503.95
Publikováno v:
Physical Review Letters. 82:4484-4487
In superfluid He-3-B under conditions of negligible normal fluid density we are able to trap a domain of coherent spin precession away from the destructive influence of boundaries. After the domain is generated by an NMR pulse, the free spin precessi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97c263511bcbabd3571ca36459076702
https://doi.org/10.1103/physrevlett.82.4484
https://doi.org/10.1103/physrevlett.82.4484
Autor:
I. E. Miller, D. J. Cousins, Pierre Thibault, A. M. Guénault, George R. Pickett, P. Skyba, M. G. Ward, Richard P. Haley, G. N. Plenderleith, Shaun N. Fisher
Publikováno v:
Journal of Low Temperature Physics. 114:547-570
We have constructed a large new dilution refrigerator for use with the new Lancaster nuclear cooling facility. The machine is housed in a purpose-rebuilt suite of rooms and has been designed to have a very low base temperature, a very low heat leak e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c16a579ea78fb20f3e9a27452249746a
https://doi.org/10.1023/a:1021862406629
https://doi.org/10.1023/a:1021862406629
Publikováno v:
Journal of Low Temperature Physics. 110:57-62
It has recently been discovered that at temperatures below about 0.2T C in superfluid 3 He-B, pulsed NMR excitation can generate a new coherently precessing spin state which can have a lifetime of tens of seconds. The free induction decay signal from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffef3cdd5f69cf76f7656a938ade8e3d
https://doi.org/10.1023/a:1022506532232
https://doi.org/10.1023/a:1022506532232
Publikováno v:
Physical Review Letters. 79:2285-2288
The excitation gas in superfluid ${}^{3}$He-B is unique in having a completely non-Newtonian dispersion relation and being free and accessible to dynamic experiment. The dynamics of this excitation gas are very interesting and highly nonintuitive. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cd344f64fd275475dba5850331ffbae
https://doi.org/10.1103/physrevlett.79.2285
https://doi.org/10.1103/physrevlett.79.2285
Autor:
M. P. Enrico, P. J. Y. Thibault, S. L. Phillipson, D. J. Cousins, Shaun N. Fisher, George R. Pickett, N. S. Shaw
Publikováno v:
Physical Review Letters. 77:5245-5248
Using a ballistic excitation beam generated by a quasiparticle blackbody radiator, we have probed the gap structure of a $B\ensuremath{-}A$ interface in superfluid ${}^{3}$He, stabilized magnetically. We see Andreev reflection both from the interface
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4aa627d6e25c4adaea3acd26e8a5abb1
https://doi.org/10.1103/physrevlett.77.5245
https://doi.org/10.1103/physrevlett.77.5245
Autor:
M. P. Enrico, D. J. Cousins, S. L. Phillipson, George R. Pickett, A. M. Guénault, N. S. Shaw, P. J. Y. Thibault, Shaun N. Fisher
Publikováno v:
Journal of Low Temperature Physics. 101:293-298
We have attempted to observe the Andreev reflection of a beam of ballistic quasiparticle excitations as it impinges on a static B-A phase interface. The beam is created, and the Andreev reflected component measured, by the quasiparticle equivalent of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09d94047111995dddebfe446af0e0fb5
https://doi.org/10.1007/bf00754591
https://doi.org/10.1007/bf00754591
Autor:
D. J. Cousins, E. N. Smith, George R. Pickett, S. N. Fisher, A. M. Guénault, R. P. Turner, Pierre Thibault, C. Bäuerle, Yu. M. Bunkov, Henri Godfrin
Publikováno v:
Journal of Low Temperature Physics. 101:259-264
We present direct measurements of the thermal resistance between a saturated dilute3He-4He solution and sintered silver powder between 5 and 150mK. Measurements obtained using different sinter geometries allow us to distinguish the contribution due t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b35f6f87ee97fb255746f298a8f5d776
https://doi.org/10.1007/bf00754586
https://doi.org/10.1007/bf00754586
Autor:
A. M. Guénault, Yu. M. Bunkov, T. J. Sloan, W. M. Hayes, M. P. Enrico, Shaun N. Fisher, D. J. Cousins, George R. Pickett, D. I. Bradley, M. R. Follows
Publikováno v:
Journal of Low Temperature Physics. 101:9-16
The excitations in superfluid3He have a dispersion curve in which the energy minimum does not coincide with the momentum minimum. As a result, when a mechanical resonator moves through a gas of such excitations, normal and Andreev scattering processe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e36c157caf10a4e66f116ae32b18691c
https://doi.org/10.1007/bf00754556
https://doi.org/10.1007/bf00754556