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Cyclotron resonance of a magnetic quantum dot
Nga T. T. Nguyen, F. M. Peeters
The energy spectrum of a one-electron quantum dot doped with a single magnetic ion is studied in the presence of an external magnetic field. The allowed cyclotron resonance (CR) tr…
Magnetic field dependence of the many-electron states in a magnetic quantum dot: The ferromagnetic-antiferromagnetic transition
Nga T. T. Nguyen, F. M. Peeters
The electron-electron correlations in a many-electron (Ne = 1, 2,..., 5) quantum dot confined by a parabolic potential is investigated in the presence of a single magnetic ion and…
Graphene: a perfect nanoballoon
O. Leenaerts, B. Partoens, F. M. Peeters
We have performed a first-principles density functional theory investigation of the penetration of helium atoms through a graphene monolayer with defects. The relaxation of the gra…
Modeling of chemical processes in the low pressure capacitive RF discharges in a mixture of Ar/C2H2
D. A. Ariskin, I. V. Schweigert, A. L. Alexandrov +2
We study the properties of a capacitive 13.56 MHz discharge properties with a mixture of Ar/C2H2 taking into account the plasmochemistry and growth of heavy hydrocarbons. A hybrid…
Networks of quantum nanorings: programmable spintronic devices
Peter Foldi, Orsolya Kalman, Mihaly G. Benedict +1
An array of quantum rings with local (ring by ring) modulation of the spin orbit interaction (SOI) can lead to novel effects in spin state transformation of electrons. It is shown…
Magnetic-field asymmetry of electron wave packet transmission in bent channels capacitively coupled to a metal gate
R. Kalina, B. Szafran, S. Bednarek +1
We study the electron wave packet moving through a bent channel. We demonstrate that the packet transmission probability becomes an uneven function of the magnetic field when the e…
Magnetic-field induced quantum-size cascades in superconducting nanowires
A. A. Shanenko, M. D. Croitoru, F. M. Peeters
In high-quality nanowires, quantum confinement of the transverse electron motion splits the band of single-electron states in a series of subbands. This changes in a qualitative wa…
Magnetoconductance properties of rectangular arrays of spintronic quantum rings
Orsolya Kalman, Peter Foldi, Mihaly G. Benedict +1
Electron transport through multi-terminal rectangular arrays of quantum rings is studied in the presence of Rashba-type spin-orbit interaction (SOI) and of a perpendicular magnetic…
Paramagnetic adsorbates on graphene: a charge transfer analysis
O. Leenaerts, B. Partoens, F. M. Peeters
We introduce a modified version of the Hirshfeld charge analysis method and demonstrate its accurateness by calculating the charge transfer between the paramagnetic molecule NO2 an…
Collective vortex phases in periodic plus random pinning potential
W. V. Pogosov, V. R. Misko, H. J. Zhao +1
We study theoretically the simultaneous effect of a regular and a random pinning potentials on the vortex lattice structure at filling factor of 1. This structure is determined by…
Tuning of energy levels and optical properties of graphene quantum dots
Z. Z. Zhang, Kai Chang, F. M. Peeters
We investigate theoretically the magnetic levels and optical properties of zigzag- and armchair-edged hexagonal graphene quantum dots (GQDs) utilizing the tight-binding method. A n…
Formation and Size-Dependence of Vortex Shells in Mesoscopic Superconducting Niobium Disks
V. R. Misko, B. Xu, F. M. Peeters
Recent experiments [I.V. Grigorieva et al., Phys. Rev. Lett. 96, 077005 (2006)] on visualization of vortices using the Bitter decoration technique revealed vortex shells in mesosco…