Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.7k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.4k papers
- University of Maryland, College ParkUS2.2k papers
- European Organization for Nuclear ResearchCH2.1k papers
- Centro Brasileiro de Pesquisas FísicasBR2.1k papers
- Imperial College LondonGB2.1k papers
- University of ZurichCH2k papers
- Massachusetts Institute of TechnologyUS2k papers
- Rutherford Appleton LaboratoryGB2k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.9k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT1.9k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT1.9k papers
23 papers · 2 filters
Probing electron-electron interaction in quantum Hall systems with scanning tunneling spectroscopy
S. Becker, C. Karrasch, T. Mashoff +4
Using low-temperature scanning tunneling spectroscopy applied to the Cs-induced two-dimensional electron system (2DES) on p-type InSb(110), we probe electron-electron interaction e…
Observation of Long Spin Relaxation Times in Bilayer Graphene at Room Temperature
T. -Y. Yang, J. Balakrishnan, F. Volmer +10
We report on the first systematic study of spin transport in bilayer graphene (BLG) as a function of mobility, minimum conductivity, charge density and temperature. The spin relaxa…
Spin exchange interaction with tunable range between graphene quantum dots
Matthias Braun, P. R. Struck, Guido Burkard
We study the spin exchange between two electrons localized in separate quantum dots in graphene. The electronic states in the conduction band are coupled indirectly by tunneling to…
Spin-dependent electronic hybridization in a rope of carbon nanotubes
Karin Goß, Sebastian Smerat, Martin Leijnse +3
We demonstrate single electron addition to different strands of a carbon nanotube rope. Anticrossings of anomalous conductance peaks occur in quantum transport measurements through…
Disorder induced Coulomb gaps in graphene constrictions with different aspect ratios
B. Terrés, J. Dauber, C. Volk +3
We present electron transport measurements on lithographically defined and etched graphene nanoconstrictions with different aspect ratios including different lengths (L) and widths…
Spectroscopy of electron flows with single- and two-particle emitters
Michael Moskalets, Markus Büttiker
To analyze the state of injected carrier streams of different electron sources, we propose to use correlation measurements at a quantum point contact with the different sources con…
Spin quadrupoletronics: moving spin anisotropy around
Michael Baumgärtel, Michael Hell, Sourin Das +1
We show that spin anisotropy can be transferred to an isotropic system by transport of spin quadrupole moment. We derive the quadrupole moment current and continuity equation and s…
Electric Field Controlled Magnetic Anisotropy in a Single Molecule
Alexander S. Zyazin, Johan W. G. van den Berg, Edgar A. Osorio +8
We have measured quantum transport through an individual Fe single-molecule magnet embedded in a three-terminal device geometry. The characteristic zero-field splittings of adj…
Density-operator approaches to transport through interacting quantum dots: Simplifications in fourth-order perturbation theory
Sonja Koller, Martin Leijnse, Maarten R. Wegewijs +1
Various theoretical methods address transport effects in quantum dots beyond single-electron tunneling while accounting for the strong interactions in such systems. In this paper w…
Spin and orbital fluctuations in non-equilibrium transport through quantum dots: A renormalisation-group analysis
S. Y. Mueller, V. Koerting, D. Schuricht +1
We study non-equilibrium current and occupation probabilities of a two-orbital quantum dot. The couplings to the leads are allowed to be asymmetric and orbital dependent as it is g…
Charge transport through single molecules, quantum dots, and quantum wires
S. Andergassen, V. Meden, H. Schoeller +2
We review recent progresses in the theoretical description of correlation and quantum fluctuation phenomena in charge transport through single molecules, quantum dots, and quantum…
Charge and spin pumping through a double quantum dot
Roman-Pascal Riwar, Janine Splettstoesser
We calculate adiabatic charge and spin pumping through a serial double quantum dot with strong Coulomb interaction, coupled to normal metal or ferromagnetic contacts. We use a real…
Non-linear thermoelectrics of molecular junctions with vibrational coupling
M. Leijnse, M. R. Wegewijs, K. Flensberg
We present a detailed study of the non-linear thermoelectric properties of a molecular junction, represented by a dissipative Anderson-Holstein model. A single orbital level with s…
Interaction-induced adiabatic non-linear transport
Felix Reckermann, Janine Splettstoesser, Maarten R. Wegewijs
We calculate the time-dependent non-linear transport current through an interacting quantum dot in the single-electron tunneling regime (SET). We show that an additional dc current…
Transition to Landau Levels in Graphene Quantum Dots
F. Libisch, S. Rotter, J. Güttinger +2
We investigate the electronic eigenstates of graphene quantum dots of realistic size (i.e., up to 80 nm diameter) in the presence of a perpendicular magnetic field B. Numerical tig…
Effective low-energy Hamiltonians for interacting nanostructures
Michael Kinza, Jutta Ortloff, Carsten Honerkamp
We present a functional renormalization group (fRG) treatment of trigonal graphene nanodiscs and composites thereof, modeled by finite-size Hubbard-like Hamiltonians with honeycomb…
Gundlach oscillations and Coulomb blockade of Co nano-islands on MgO/Mo(100) investigated by scanning tunneling spectroscopy at 300 K
C. Pauly, M. Grob, M. Pezzotta +2
Ultrathin MgO films on Mo(100) with a thickness up to 12 ML are studied by scanning tunneling microscopy and spectroscopy at room temperature. The spatial variation of the work fun…
Transport via coupled states in a C60 peapod quantum dot
Anders Eliasen, Jens Paaske, Karsten Flensberg +6
We have measured systematic repetitions of avoided crossings in low temperature three-terminal transport through a carbon nanotube with encapsulated C60 molecules. We show that thi…
Scanning tunneling spectroscopy of a dilute two-dimensional electron system exhibiting Rashba spin splitting
S. Becker, M. Liebmann, T. Mashoff +2
Using scanning tunneling spectroscopy (STS) at 5 K in B-fields up to 7 T, we investigate the local density of states of a two-dimensional electron system (2DES) created by Cs adsor…
Observation of excited states in a graphene double quantum dot
F. Molitor, H. Knowles, S. Dröscher +8
We study a graphene double quantum dot in different coupling regimes. Despite the strong capacitive coupling between the dots, the tunnel coupling is below the experimental resolut…
Comparative study of theoretical methods for nonequilibrium quantum transport
J. Eckel, F. Heidrich-Meisner, S. G. Jakobs +3
We present a detailed comparison of three different methods designed to tackle nonequilibrium quantum transport, namely the functional renormalization group (fRG), the time-depende…
Spectral features due to inter-Landau-level transitions in the Raman spectrum of bilayer graphene
M. Mucha-Kruczynski, O. Kashuba, V. I. Fal'ko
We investigate the contribution of the low-energy electronic excitations towards the Raman spectrum of bilayer graphene for the incoming photon energy Omega >> 1eV. Starting with t…
Charge and spin dynamics in interacting quantum dots
Janine Splettstoesser, Michele Governale, Jürgen König +1
The transient response of a quantum dot with strong Coulomb interaction to a fast change in the gate potential, as well as the stationary ac-response to a slow harmonic variation o…