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Pinning and depinning of a classic quasi-one-dimensional Wigner crystal in the presence of a constriction
G. Piacente, F. M. Peeters
We studied the dynamics of a quasi-one-dimensional chain-like system of charged particles at low temperature, interacting through a screened Coulomb potential in the presence of a…
Few-electron eigenstates of concentric double quantum rings
B. Szafran, F. M. Peeters
Few-electron eigenstates confined in coupled concentric double quantum rings are studied by the exact diagonalization technique. We show that the magnetic field suppresses the tunn…
Mesoscopic field and current compensator based on a hybrid superconductor-ferromagnet structure
M. V. Milosevic, G. R. Berdiyorov, F. M. Peeters
A rather general enhancement of superconductivity is demonstrated in a hybrid structure consisting of submicron superconducting (SC) sample combined with an in-plane ferromagnet (F…
Quantum rings as electron spin beam splitters
Peter Foldi, Orsolya Kalman, Mihaly G. Benedict +1
Quantum interference and spin-orbit interaction in a one-dimensional mesoscopic semiconductor ring with one input and two output leads can act as a spin beam splitter. Different po…
Microwave emission from a crystal of molecular magnets -- The role of a resonant cavity
Mihaly G. Benedict, Peter Foldi, F. M. Peeters
We discuss the effects caused by a resonant cavity around a sample of a magnetic molecular crystal (such as Mn-Ac), when a time dependent external magnetic field is applie…
Vortex-antivortex nucleation in magnetically nanotextured superconductors: Magnetic-field-driven and thermal scenarios
M. V. Milosevic, F. M. Peeters
Within the Ginzburg-Landau formalism, we predict two novel mechanisms of vortex-antivortex nucleation in a magnetically nanostructured superconductor. Although counterintuitive, nu…