Thomas Nussbaumer

A study into the variation in microbiological water quality between different water source types (2008)

Nussbaumer , Thomas

This thesis is submitted in partial fulfilment of the requirements for the degree of Master of Science. The thesis sets out the results of a structured programme of research or design, development or...

Multiple Andreev reflections in a carbon nanotube quantum dot (2003)

Buitelaar, Mark R., Belzig, Wolfgang, Nussbaumer, Thomas, Babic, Bakir, Bruder, Christoph, Schönenberger, Christian

We report resonant multiple Andreev reflections in a multiwall carbon nanotube quantum dot coupled to superconducting leads. The position and magnitude of the subharmonic gap structure is found to...

The amplitude of non-equilibrium quantum interference in metallic mesoscopic systems (2002)

Terrier, C, Babic, D., Strunk, Christoph, Nussbaumer, Thomas

We study the influence of a DC bias voltage V on quantum interference corrections to the measured differential conductance in metallic mesoscopic wires and rings. The amplitude of both universal...

Vortex motion noise in micrometer-sized thin films of the amorphous Nb0.7Ge0.3 weak-pinning superconductor (2002)

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...

Doping state of multi-wall carbon nanotubes wires and quantum dots (2001)

Schönenberger, Christian, Buitelaar, Mark, Krüger, Michael, Widmer, Isabelle, Nussbaumer, Thomas, Iqbal, Mahdi

Employing strong electrostatic gating (liquid-ion gating), the position of the Fermi energy E_F (relative to the charge-neutrality point) was determined in multi-wall carbon nanotubes (MWNTs). E_F is...

Multiple Andreev reflection and giant excess noise in diffusive superconductor/normal-metal/superconductor junctions (2000)

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...

Aharonov-Bohm oscillations in carbon nanotubes (1999)

Bachtold, Adrian, Strunk, Christoph, Salvetat, Jean-Paul, Bonard, Jean-Marc, Forro, Laszlo, Nussbaumer, Thomas, ...

When electrons pass through a cylindrical electrical conductor aligned in a magnetic field, their wave-like nature manifests itself as a periodic oscillation in the electrical resistance as a...