3 papers
cond-mat.mes-hall2000
Analysis of the temperature-dependent quantum point contact conductance in view of the metal-insulator transition in two dimensions
V. Senz, T. Heinzel, T. Ihn +5
The temperature dependence of the conductance of a quantum point contact has been measured. The conductance as a function of the Fermi energy shows temperature-independent fixed po…
cond-mat.mes-hall1999
In-plane gate single-electron transistor in Ga[Al]As fabricated by scanning probe lithography
S. Luescher, A. Fuhrer, R. Held +3
A single-electron transistor has been realized in a Ga[Al]As heterostructure by oxidizing lines in the GaAs cap layer with an atomic force microscope. The oxide lines define the bo…
cond-mat.mes-hall1999
Shifting a Quantum Wire through a Disordered Crystal: Observation of Conductance Fluctuations in Real Space
T. Heinzel, G. Salis, R. Held +4
A quantum wire is spatially displaced by suitable electric fields with respect to the scatterers inside a semiconductor crystal. As a function of the wire position, the low-tempera…