Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Apel, V. M."'
Publikováno v:
Annalen der Physik 2022
We investigate a variant of the SSH model consisting of an SSH chain with an embedded Aharonov-Bohm quantum ring. The embedded ring gives rise to domain wall states whose energy levels are in the band gap. The dependence of some of the states on the
Externí odkaz:
http://arxiv.org/abs/2209.02910
Publikováno v:
J. Phys.: Condensed Matter 29, 135301 (2017)
In the present work, we investigate the electronic transport through a T-shape double quantum dot system coupled to two normal leads and to one superconducting lead. We explore the interplay between Kondo and Andreev states due to proximity effects.
Externí odkaz:
http://arxiv.org/abs/1610.06557
Publikováno v:
J. Appl. Phys. 115, 124507 (2014)
We consider the generation of a pure spin-current at zero bias voltage with a single time-dependent potential. To such end we study a device made of a mesoscopic ring connected to electrodes and clarify the interplay between a magnetic flux, spin-orb
Externí odkaz:
http://arxiv.org/abs/1403.4265
In this work,we study the Kondo effect of a quantum dot (QD) connected to leads and to a discrete set of one particle states provided by a quantum box represented by a quantum ring (QR) pierced by a magnetic flux side attached to the QD. The interpla
Externí odkaz:
http://arxiv.org/abs/1205.1744
The electronic transport in a system of two quantum rings side-coupled to a quantum wire is studied via a single-band tunneling tight-binding Hamiltonian. We derived analytical expressions for the conductance and spin polarization when the rings are
Externí odkaz:
http://arxiv.org/abs/0803.4014
The transport properties of a system of two interacting dots, one of them directly connected to the leads constituting a side-coupled configuration (SCD), are studied in the weak and strong tunnel-coupling limits. The conductance behavior of the SCD
Externí odkaz:
http://arxiv.org/abs/cond-mat/0404691
Phase effects on the conductance of a double-dot system in a ring structure threaded by a magnetic flux are studied. The Aharonov-Bohm effect combined with the dot many-body charging effects determine the phases of the currents going through each arm
Externí odkaz:
http://arxiv.org/abs/cond-mat/0404685
Publikováno v:
Phys.Rev.Lett. Vol.85, 4152 (2000).
Confinement and surface roughness (SR) effects on the magnitude of the persistent current are analized for ballistic bidimensional metallic samples. Depending on the particular geometry, localized border states can show up at half filling. These bord
Externí odkaz:
http://arxiv.org/abs/cond-mat/0002403
We consider a bidimensional discrete annular cavity with surface roughness (SR) threaded by a magnetic flux. In the ballistic regime and at half filling, localized border-states show up. These border states contribute coherentely to the persistent cu
Externí odkaz:
http://arxiv.org/abs/cond-mat/9910527
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