1 - 8 of 8 articles
The RCSJ model of resistively and capacitively shunted Josephson junctions is used to describe superconducting point contacts over a wide range of resistances up to the metallic–tunneling transition. Their small dynamic capacitance of order C = 0.1 fF due to the point-contact geometry results in...
We describe a simulation of the scattering in beams of helium atoms. The number of atoms N in the beams is reduced by a large scaling factor λ while the collision cross-section is increased by λ. This leaves the rate of scattering for each particle unchanged. As an example, we predict the...
Relaxational dynamics of the supercooled normal domain with magnetic flux inside in a type-II superconductor is considered. It is shown numerically that the restoration of superconductivity is accompanied by explosive nucleation of topological vortices and antivortices. On a longer time scale...
Interest in the critical dynamics of superfluid
He in microgravity conditions has motivated the development of new high resolution thermometry technology for use in space experiments near 2 K. We have developed a magnetic thermometer using dilute magnetic alloys of Mn or Fe dissolved in a pure...
Studies with a constrained Ginzburg–Landau approach have suggested that the Quadrupole core vortex in
He-B should be a saddle point of the free energy (G. E. Volovik and M. M. Salomaa, JETP Lett.
, 56 (1987)). We have carried out a careful numerical analysis in the framework of the...
Third sound speeds in
He thin films are sensitive to the transverse single-particle state occupied by the
He. The third sound speed in the low coverage region with the
He occupying the transverse ground-state can be understood quantitatively. The onset of occupation of the first...
We present evidence for
He interfacial bound states at the Cs-liquid He interface and show their influence on the interfacial free energies and the nonwetting behaviour of dilute
He mixtures on Cs. The bound state energy and effective mass for the
He atoms at this interface are...
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