researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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Showing 2009 · cond-mat.mes-hallShow all

14 papers · 2 filters

cond-mat.mes-hall2009★ 49 cited

Electrical transport and low-temperature scanning tunneling microscopy of microsoldered graphene

V. Geringer, D. Subramaniam, A. K. Michel +7

Using the recently developed technique of microsoldering, we perform a systematic transport study of the influence of PMMA on graphene flakes revealing a doping effect of up to 3.8…

cond-mat.mes-hall2009★ 15 cited

Dzyaloshinskii-Moriya interaction in transport through single molecule transistors

S. Herzog, M. R. Wegewijs

The Dzyaloshinskii-Moriya interaction is shown to result in a canting of spins in a single molecule transistor. We predict non-linear transport signatures of this effect induced by…

cond-mat.mes-hall2009★ 74 cited

Non-equilibrium current and relaxation dynamics of a charge-fluctuating quantum dot

C. Karrasch, S. Andergassen, M. Pletyukhov +4

We study the steady-state current in a minimal model for a quantum dot dominated by charge fluctuations and analytically describe the time evolution into this state. The current is…

cond-mat.mes-hall2009★ 42 cited

Asymmetric Franck-Condon factors in suspended carbon nanotube quantum dots

Fabio Cavaliere, Eros Mariani, Renaud Leturcq +2

Electronic states and vibrons in carbon nanotube quantum dots have in general different location and size. As a consequence, the conventional Anderson-Holstein model, coupling vibr…

cond-mat.mes-hall2009★ 11 cited

Transport through open quantum dots: making semiclassics quantitative

Iva Brezinova, Ludger Wirtz, Stefan Rotter +2

We investigate electron transport through clean open quantum dots (quantum billiards). We present a semiclassical theory that allows to accurately reproduce quantum transport calcu…

cond-mat.mes-hall2009★ 111 cited

Bistability and oscillatory motion of natural nano-membranes appearing within monolayer graphene on silicon dioxide

T. Mashoff, M. Pratzer, V. Geringer +4

The recently found material graphene is a truly two-dimensional crystal and exhibits, in addition, an extreme mechanical strength. This in combination with the high electron mobili…

cond-mat.mes-hall2009★ 13 cited

Power dissipation for systems with junctions of multiple quantum wires

Amit Agarwal, Sourin Das, Diptiman Sen

We study power dissipation for systems of multiple quantum wires meeting at a junction, in terms of a current splitting matrix (M) describing the junction. We present a unified fra…

cond-mat.mes-hall2009★ 33 cited

Transient dynamics of a molecular quantum dot with a vibrational degree of freedom

R. -P. Riwar, T. L. Schmidt

We investigate the transient effects occurring in a molecular quantum dot described by an Anderson-Holstein Hamiltonian which is instantly coupled to two fermionic leads biased by…

cond-mat.mes-hall2009★ 7 cited

Quantum non-demolition measurements of a qubit coupled to a harmonic oscillator

Luca Chirolli, Guido Burkard

We theoretically describe the weak measurement of a two-level system (qubit) and quantify the degree to which such a qubit measurement has a quantum non-demolition (QND) character.…

cond-mat.mes-hall2009★ 38 cited

Graphene quantum dots in perpendicular magnetic fields

J. Guettinger, C. Stampfer, T. Frey +2

We report transport experiments on graphene quantum dots. We focus on excited state spectra in the near vicinity of the charge neutrality point and signatures of the electron-hole…

cond-mat.mes-hall2009★ 88 cited

Aharonov-Bohm effect in a side-gated graphene ring

Magdalena Huefner, Françoise Molitor, Arnhild Jacobsen +4

We investigate the magnetoresistance of a side-gated ring structure etched out of single-layer graphene. We observe Aharonov-Bohm oscillations with about 5% visibility. We are able…

cond-mat.mes-hall2009★ 39 cited

Pair-tunneling resonance in the single-electron transport regime

M. Leijnse, M. R. Wegewijs, M. H. Hettler

We predict a new electron pair-tunneling (PT) resonance in non-linear transport through quantum dots with positive charging energies exceeding the broadening due to thermal and qua…

cond-mat.mes-hall2009★ 165 cited

A perturbative nonequilibrium renormalization group method for dissipative quantum mechanics: Real-time RG in frequency space (RTRG-FS)

Herbert Schoeller

We study a generic problem of dissipative quantum mechanics, a small local quantum system with discrete states coupled in an arbitrary way (i.e. not necessarily linear) to several…

cond-mat.mes-hall2009★ 55 cited

Real-time renormalization group in frequency space: A 2-loop analysis of the nonequilibrium anisotropic Kondo model at finite magnetic field

Herbert Schoeller, Frank Reininghaus

We apply a recently developed nonequilibrium real-time renormalization group method in frequency space to describe nonlinear quantum transport through a small fermionic quantum sys…