Zobrazeno 1 - 10
of 463
pro vyhledávání: '"Planelles J"'
Electrostatic charges near the interface bewteen topological (TI) and ordinary (OI) insulators induce magnetic fields in the medium that can be described through the so-called method of image dyons (electric charge - magnetic monopole pairs), the mag
Externí odkaz:
http://arxiv.org/abs/2302.05180
Publikováno v:
Phys. Rev. B 93, 085312 (2016)
The electronic structure of monolayer MoS$_2$ nanoribbons and quantum dots have been investigated by means of an effective $\mathbf{k}\cdot \mathbf{p}$ two-band model. Both systems with borders exhibit states spatially localized on the edges and with
Externí odkaz:
http://arxiv.org/abs/1511.00866
Anisotropy of spin-orbit induced electron spin relaxation in [001] and [111] grown GaAs quantum dots
Publikováno v:
2015 New J. Phys. 17 033014
We report a systematic study of the spin relaxation anisotropy between single electron Zeeman sublevels in cuboidal GaAs quantum dots (QDs). The QDs are subject to an in-plane magnetic field. As the field orientation varies, the relaxation rate oscil
Externí odkaz:
http://arxiv.org/abs/1409.2392
We report a numerical study of the effect of interface alloying and band-alignment on the Auger recombination processes of core/shell nanocrystals. Numerical calculations are carried out using a two-band Kane Hamiltonian. Smooth interfaces are found
Externí odkaz:
http://arxiv.org/abs/1111.1526
Vertically coupled double quantum rings submitted to a perpendicular magnetic field $B$ are addressed within the local spin-density functional theory. We describe the structure of quantum ring molecules containing up to 40 electrons considering diffe
Externí odkaz:
http://arxiv.org/abs/0809.3103
Autor:
Climente, JI, Planelles, J
Publikováno v:
J. Phys.: Condens. Matter 20 (2008) 035212
The molecular states of conduction electrons in laterally coupled quantum rings are investigated theoretically. The states are shown to have a distinct magnetic field dependence, which gives rise to periodic fluctuations of the tunnel splitting and r
Externí odkaz:
http://arxiv.org/abs/0712.0224
A comprehensive study of anisotropic quantum rings, QRs, subject to axial and in-plane magnetic field, both aligned and transverse to the anisotropy direction, is carried out. Elliptical QRs for a wide range of eccentricity values and also perfectly
Externí odkaz:
http://arxiv.org/abs/cond-mat/0703484
The conduction band electron states of laterally-coupled semiconductor quantum rings are studied within the frame of the effective mass envelope function theory. We consider the effect of axial and in-plane magnetic fields for several inter-ring dist
Externí odkaz:
http://arxiv.org/abs/cond-mat/0606438
Autor:
Planelles, J., Movilla, J. L.
The role of image charges in nanoporous semiconductor materials is investigated within the framework of the effective mass and envelope function approximations. We show that nanometric air bubbles in these materials can act as electron-trapping cente
Externí odkaz:
http://arxiv.org/abs/cond-mat/0603599
The ground state structure of few-electron concentric double quantum rings is investigated within the local spin density approximation. Signatures of inter-ring coupling in the addition energy spectrum are identified and discussed. We show that the e
Externí odkaz:
http://arxiv.org/abs/cond-mat/0603588