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19982026
most citedEnergy spectra of quantum rings

474 citations · 12.3k across the 278 of their papers we have counts for

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Showing 2008Show all

13 papers · 1 filter

cond-mat.dis-nn2008★ 426 cited

Energy gaps in etched graphene nanoribbons

C. Stampfer, J. Guettinger, S. Hellmueller +3

Transport measurements on an etched graphene nanoribbon are presented. It is shown that two distinct voltage scales can be experimentally extracted that characterize the parameter…

cond-mat.mes-hall2008★ 151 cited

Transport gap in side-gated graphene constrictions

F. Molitor, A. Jacobsen, C. Stampfer +3

We present measurements on side gated graphene constrictions of different geometries. We characterize the transport gap by its width in back gate voltage and compare this to an ana…

cond-mat.mes-hall2008★ 151 cited

Analytic Model for the Energy Spectrum of a Graphene Quantum Dot in a Perpendicular Magnetic Field

S. Schnez, K. Ensslin, M. Sigrist +1

We analytically calculate the energy spectrum of a circular graphene quantum dot with radius R subjected to a perpendicular magnetic field B by applying the infinite-mass boundary…

cond-mat.mes-hall2008★ 19 cited

Time-resolved charge detection with cross-correlation techniques

B. Küng, O. Pfäffli, S. Gustavsson +4

We present time-resolved charge sensing measurements on a GaAs double quantum dot with two proximal quantum point contact (QPC) detectors. The QPC currents are analyzed with cross-…

cond-mat.mes-hall2008★ 118 cited

Charge Detection in Graphene Quantum Dots

J. Guettinger, C. Stampfer, S. Hellmueller +3

We report measurements on a graphene quantum dot with an integrated graphene charge detector. The quantum dot device consists of a graphene island (diameter approx. 200 nm) connect…

cond-mat.mes-hall2008★ 15 cited

Observation of excited states in a p-type GaAs quantum dot

Y. Komijani, M. Csontos, T. Ihn +3

A quantum dot fabricated by scanning probe oxidation lithography on a p-type, C-doped GaAs/AlGaAs heterostructure is investigated by low temperature electrical conductance measurem…