Publications (50)
Edge Channel Interference Controlled by Landau Level Filling
L. V. Litvin, A. Helzel, H. -P. Tranitz +2
We study the visibility of Aharonov-Bohm interference in an electronic Mach-Zehnder interferometer (MZI) in the integer quantum Hall regime. The visibility is controlled by the fil…
Competition between magnetic field dependent band structure and coherent backscattering in multiwall carbon nanotubes
B. Stojetz, S. Roche, C. Miko +3
Magnetotransport measurements in large diameter multiwall carbon nanotubes (20-40 nm) demonstrate the competition of a magnetic-field dependent bandstructure and Altshuler-Aronov-S…
Magnetic field-tuned superconductor/insulator transition in TiN nanostrips
I. Schneider, K. Kronfeldner, T. I. Baturina +1
We have measured the electric transport properties of TiN nanostrips with different widths. At zero magnetic field the temperature dependent resistance R(T) saturates at a finite r…
The Hanbury Brown and Twiss Experiment with Fermions
S. Oberholzer, M. Henny, C. Strunk +4
We realized an equivalent Hanbury Brown and Twiss experiment for a beam of electrons in a two dimensional electron gas in the quantum Hall regime. A metallic split gate serves as a…
Spectroscopy of non-local superconducting correlations in a double quantum dot
L. G. Herrmann, P. Burset, W. J. Herrera +5
We investigate non-linear transport in a double quantum dot connected to two normal electrodes and a central superconducting finger. By this means, we perform a transport spectrosc…
Direct observation of band-gap closure for a semiconducting carbon nanotube in a large parallel magnetic field
S. H. Jhang, M. Marganska, Y. Skourski +4
We have investigated the magnetoconductance of semiconducting carbon nanotubes (CNTs) in pulsed, parallel magnetic fields up to 60 T, and report the direct observation of the predi…