Feedback controlled electromigration in four-terminal nano-junctions (2007)
Wu, Zheng-Ming, Steinacher, Michael, Huber, Roman, Calame, Michel, Van Der Molen, Sense Jan, Schonenberger, Christian
We have developed a fast, yet highly reproducible method to fabricate metallic electrodes with nanometer separation using electromigration (EM). We employ four-terminal instead of two-terminal...
Observation of Fano-Resonances in Single-Wall Carbon Nanotubes (2004)
Babic, Bakir, Schonenberger, Christian
We have explored the low-temperature linear and non-linear electrical conductance $G$ of metallic carbon nanotubes (CNTs), which were grown by the chemical-vapor deposition method. The high...
Shot noise of series quantum point contacts intercalating chaotic cavities (2002)
Oberholzer, Stefan, Sukhorukov, Eugene V., Strunk, Christoph, Schonenberger, Christian
Shot noise of series quantum point contacts forming a sequence of cavities in a two-dimensional electron gas are studied theoretically and experimentally. Noise in such a structure originates from...
Bipolar single-wall carbon nanotube field-effect transistor (2002)
Babic, Bakir, Iqbal, Mahdi, Schonenberger, Christian
We use a simultaneous flow of ethylene and hydrogen gases to grow single wall carbon nanotubes by chemical vapor deposition. Strong coupling to the gate is inferred from transport measurements for...
Babic, Dragutin, Nussbaumer, Thomas, Strunk, Christoph, Schonenberger, Christian, Sürgers, Christoph
The modeling and control of a three-phase threes-witch buck-type rectifier system with integrated boost output stage (Voltage Range Extended 4-Switch Rectifier) is analyzed in this paper. A cascaded...
Fabrication and superconducting properties of nanostructured SFS contacts (2002)
Sürgers, Christoph, Hoss, Tilman, Schonenberger, Christian, Strunk, Christoph
Superconducting hybrid structures of submicrometer size utilizing high-melting transition metals such as Nb or Ta can be fabricated in ultra-high vacuum by means of a non-organic evaporation mask...
Shot noise by quantum scattering in chaotic cavities (2001)
Oberholzer, Stefan, Sukhorukov, Eugene V., Strunk, Christoph, Schonenberger, Christian, Heinzel, T., Holland, M.
We have experimentally studied shot noise of chaotic cavities defined by two quantum point contacts in series. The cavity noise is determined as (1/4)2e[1] in agreement with theory and can be well...
Hoss, Tilman, Strunk, Christoph, Nussbaumer, Thomas, Huber, R., Staufer, U., Schonenberger, Christian
We have studied superconductor/normal-metal/superconductor (SNS) junctions consisting of shea Au or Cu wires between Nh or Al banks. The Nb based junctions display inherent electron heating effects...
The Hanbury Brown and Twiss experiment with fermions (2000)
Oberholzer, Stefan, Henny, M., Strunk, Christoph, Schonenberger, Christian, Heinzel, Thomas, Ensslin, Klaus, ...
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 tunable beam...