41 citations · 141 across the 8 of their papers we have counts for
4 papers · 1 filter
Characterization of Hydrogen Plasma Defined Graphene Edges
Mirko K. Rehmann, Yemliha B. Kalyoncu, Marcin Kisiel +8
We investigate the quality of hydrogen plasma defined graphene edges by Raman spectroscopy, atomic resolution AFM and low temperature electronic transport measurements. The exposur…
Tunnel barrier design in donor nanostructures defined by hydrogen-resist lithography
Nikola Pascher, Szymon Hennel, Susanne Mueller +1
A four-terminal donor quantum dot (QD) is used to characterize potential barriers between degenerately doped nanoscale contacts. The QD is fabricated by hydrogen-resist lithography…
Resonant electron tunneling in a tip-controlled potential landscape
N. Pascher, F. Timpu, C. Rossler +4
By placing the biased tip of an atomic force microscope at a specific position above a semiconductor surface we can locally shape the potential landscape. Inducing a local repulsiv…
Imaging the Conductance of Integer and Fractional Quantum Hall Edge States
Nikola Pascher, Clemens Rössler, Thomas Ihn +3
We measure the conductance of a quantum point contact (QPC) while the biased tip of a scanning probe microscope induces a depleted region in the electron gas underneath. At finite…