312 citations · 505 across the 12 of their papers we have counts for
11 papers · 1 filter
Interplay between quantum dissipation and an in-plane magnetic field in the spin ratchet effect
Sergey Smirnov, Dario Bercioux, Milena Grifoni +1
We investigate the existence of the pure spin ratchet effect in a dissipative quasi-one-dimensional system with Rashba spin-orbit interaction. The system is additionally placed int…
Symmetry Classes in Graphene Quantum Dots: Universal Spectral Statistics, Weak Localization, and Conductance Fluctuations
J. Wurm, A. Rycerz, I. Adagideli +3
We study the symmetry classes of graphene quantum dots, both open and closed, through the conductance and energy level statistics. For abrupt termination of the lattice, these prop…
Charge-memory effect in a polaron model: equation-of-motion method for Green functions
Pino D'Amico, Dmitry A. Ryndyk, Gianaurelio Cuniberti +1
We analyze a single-level quantum system placed between metallic leads and strongly coupled to a localized vibrational mode, which models a singlemolecule junction or an STM setup.…
Semiclassical Mechanism for the Quantum Decay in Open Chaotic Systems
Daniel Waltner, Martha Gutierrez, Arseni Goussev +1
We address the decay in open chaotic quantum systems and calculate semiclassical corrections to the classical exponential decay. We confirm random matrix predictions and, going bey…
Diffusion and localization in carbon nanotubes and graphene nanoribbons
Norbert Nemec, Klaus Richter, Gianaurelio Cuniberti
We study transport length scales in carbon nanotubes and graphene ribbons under the influence of Anderson disorder. We present generalized analytical expressions for the density of…
Spin-polarized tunneling through randomly transparent magnetic junctions: Reentrant magnetoresistance approaching the Julliere limit
Grigory Tkachov, Klaus Richter
Electron conductance in planar magnetic tunnel junctions with long-range barrier disorder is studied within Glauber-eikonal approximation enabling exact disorder ensemble averaging…