272 citations · 636 across the 5 of their papers we have counts for
5 papers
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…
Raman imaging of doping domains in graphene on SiO2
C. Stampfer, L. Wirtz, A. Jungen +4
We present spatially resolved Raman images of the G and 2D lines of single-layer graphene flakes. The spatial fluctuations of G and 2D lines are correlated and are thus shown to be…
Tunable Coulomb blockade in nanostructured graphene
C. Stampfer, J. Guettinger, F. Molitor +3
We report on Coulomb blockade and Coulomb diamond measurements on an etched, tunable single-layer graphene quantum dot. The device consisting of a graphene island connected via two…
Diffractive paths for weak localization in quantum billiards
Iva Brezinova, Christoph Stampfer, Ludger Wirtz +2
We study the weak localization effect in quantum transport through a clean ballistic cavity with regular classical dynamics. We address the question which paths account for the sup…
Pseudo-Path Semiclassical Approximation to Transport through Open Quantum Billiards: Dyson Equation for Diffractive Scattering
C. Stampfer, L. Wirtz, S. Rotter +1
We present a semiclassical theory for transport through open billiards of arbitrary convex shape that includes diffractively scattered paths at the lead openings. Starting from a D…