333 citations · 391 across the 7 of their papers we have counts for
7 papers
Edge disorder induced Anderson localization and conduction gap in graphene nanoribbons
M. Evaldsson, I. V. Zozoulenko, Hengyi Xu +1
We study the effect of the edge disorder on the conductance of the graphene nanoribbons (GNRs). We find that only very modest edge disorder is sufficient to induce the conduction e…
Magnetic barriers in graphene nanoribbons
Hengyi Xu, T. Heinzel, M. Evaldsson +1
A theoretical study of the transport properties of zigzag and armchair graphene nanoribbons with a magnetic barrier on top is presented. The magnetic barrier modifies the energy sp…
Spin polarization in modulation-doped GaAs quantum wires
M. Evaldsson, S. Ihnatsenka, I. V. Zozoulenko
We study spin polarization in a split-gate quantum wire focussing on the effect of a realistic smooth potential due to remote donors. Electron interaction and spin effects are incl…
Resonant reflection at magnetic barriers in quantum wires
Hengyi Xu, T. Heinzel, M. Evaldsson +2
The conductance of a quantum wire containing a single magnetic barrier is studied numerically by means of the recursive Greens function technique. For sufficiently strong and local…
Spin polarization in open quantum dots
M. Evaldsson, I. V. Zozoulenko
We investigate coherent transport through open lateral quantum dots using recursive Green's function technique, incorporating exchange-correlation effects within local spin-density…
Quantum antidot as a controllable spin injector and spin filter
I. V. Zozoulenko, M. Evaldsson
We propose a device based on an antidot embedded in a narrow quantum wire in the edge state regime, that can be used to inject and/or to control spin polarized current. The operati…