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Dynamics of the superconducting condensate in the presence of a magnetic field. Channelling of vortices in superconducting strips at high currents
D. Vodolazov, B. J. Baelus, F. M. Peeters
On the basis of the time-dependent Ginzburg-Landau equation we studied the dynamics of the superconducting condensate in a wide two-dimensional sample in the presence of a perpendi…
Condition of the occurrence of phase slip centers in superconducting nanowires under applied current or voltage
S. Michotte, S. Matefi-Tempfli, L. Piraux +2
Experimental results on the phase slip process in superconducting lead nanowires are presented under two different experimental conditions: constant applied current or constant vol…
Effect of strain on the magneto-exciton groundstate in InP/GaInP quantum disks
K. L. Janssens, B. Partoens, F. M. Peeters
The groundstate properties of an exciton in a self-assembled quantum disk are calculated in the presence of a perpendicular magnetic field. For sufficient wide and thin dots, the s…
Current-voltage characteristics of quasi-one-dimensional superconductors: An S-curve in the constant voltage regime
D. Y. Vodolazov, F. M. Peeters, L. Piraux +2
Applying a constant voltage to superconducting nanowires we find that its IV-characteristic exhibits an unusual S-behavior. This behavior is the direct consequence of the dynamics…
The interaction between a superconducting vortex and an out-of-plane magnetized ferromagnetic disk: influence of the magnet geometry
M. V. Milosevic, F. M. Peeters
The interaction between a superconducting vortex in a type II superconducting film (SC) and a ferromagnet (FM) with out-of-plane magnetization is investigated theoretically within…
Ginzburg-Landau theory and effects of pressure on a two-band superconductor : application to MgB2
J. J. Betouras, V. A. Ivanov, F. M. Peeters
We present a model of pressure effects of a two-band superconductor based on a Ginzburg-Landau free energy with two order parameters. The parameters of the theory are pressure as w…