Search Results - "Sobnack, M. B."

Phase transitions mediated by the nucleation of single vortices in a superconducting channel by Sobnack, M.B., Kusmartsev, F.V.

“…•New boundary-driven phase transition.•Driven by spontaneous generation of single vortices and anti-vortices.•Occurs at T<Tc. We study the nucleation of single…”
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Stationary Surface Plasmons on a Zero-Order Metal Grating by Sobnack, M. B., Tan, W. C., Wanstall, N. P., Preist, T. W., Sambles, J. R.

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Thermodynamically stable vortex structures in thin superconducting disks by Wu, W.M., Sobnack, M.B., Kusmartsev, F.V.

“…We investigate the formation of thermodynamically stable vortex structures in a small, thin superconducting disk. We formulate the Gibbs free energy of the…”
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Dynamics of the collapse of a Bose–Einstein condensate by Sobnack, M.B., Kusmartsev, F.V.

“…We investigate the dynamical stability of a Bose–Einstein condensate in a non-isotropic harmonic magnetic trap and present the conditions for the collapse of…”
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Influence of backflow on roton quantum evaporation by WILLIAMS, C. D. H, SOBNACK, M. B

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Phase transitions driven by single-vortex excitations in confined geometries by SOBNACK, M. B, KUSMARTSEV, F. V

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A Beliaev theory incorporating a semi-phenomenological roton backflow effect by MATTHIAS, J. R, SOBNACK, M. B, INKSON, J. C, FUNG, J. C. H

“…We have developed a Beliaev theory incorporating a semi-phenomenological roton backflow effect in order to examine the effect of the backflow on the Quantum…”
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Nucleation of Vortices and Anti-Vortices in Mesoscopic Superconducting Discs by Wu, W. M., Sobnack, M. B., Kusmartsev, F. V.

“…We investigate the nucleation of vortices and anti-vortices in a small superconducting disc. We formulate the Gibbs free energy of the disc with an arbitrary…”
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Anderson localization effects in the transmission of energy down an irregularly ribbed fluid-loaded structure by Sobnack, M. B., Crighton, David George

“…The paper studies wave transmission along an infinite fluid-loaded elastic membrane supported by a finite array of irregularly spaced thin ribs, all having…”
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Spontaneous Generation of Single Vortices and Anti-Vortices in Superconductors with Restricted Geometries by Sobnack, M. B., Kusmartsev, F. V., Fung, J. C. H.

“…We study the nucleation of vortices in a thin (thickness ≪ penetration depth) mesoscopic superconducting disc in an applied magnetic field perpendicular to the…”
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Effect of an isolated irregularity on the transmission of energy down a periodically ribbed fluid-loaded elastic structure by Sobnack, M. B., Crighton, D. G.

“…The paper considers the problem of wave transmission in a configuration consisting of an infinite fluid-loaded elastic membrane supported by a finite array of…”
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Suppression of superconductivity in mesoscopic superconductors by Sobnack, M B, Kusmartsev, F V

“…We propose a new boundary-driven phase transition associated with vortex nucleation in mesoscopic superconductors (of size of the order of, or larger than, the…”
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Suppression of Superconductivity in Mesoscopic Superconductors by Sobnack, M. B., Kusmartsev, F. V.

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R − Rotons and Quantum Evaporation by Sobnack, M. B., Inkson, J. C.

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Sobnack and Kusmartsev Reply by Sobnack, M. B., Kusmartsev, F. V.

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The role of roton backflow in Quantum Evaporation from helium II by Matthias, J. R., Inkson, J. C., Sobnack, M. B.

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Phase Slip Avalanches in Small Superconductors by Sobnack, M. B, Kusmartsev, F. V

“…We study the effect of phase slips in a quasi 1d superconducting channel along which a current flows and report a new phenomenon where an avalanche of phase…”
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Quantum evaporation from superfluid helium surfaces: Oblique incidence by Sobnack, M. B., Inkson, J. C., Fung, F. C. H.

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Dynamics of the collapse of a Bose-Einstein condensate by SOBNACK, M. B, KUSMARTSEV, F. V

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Effect of roton backflow on quantum evaporation from superfluid super(4)He by Sobnack, M B, Matthias, J R, Fung, J C H

“…We investigate the effect of roton backflow on the scattering of atoms, rotons and phonons at the free surface of superfluid super(4)He at T identical with 0 K…”
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