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Matthias Alexander Eltschka

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Related publications (6)

Please note that this is not a complete list of this person’s publications. It includes only semantically relevant works. For a full list, please refer to Infoscience.

Critical Josephson current in the dynamical Coulomb blockade regime

Klaus Kern, Markus Etzkorn, Matthias Alexander Eltschka, Maximilian Assig

The current-voltage characteristics of a voltage-biased Josephson junction in the low conductance regime of an ultra-low temperature scanning tunneling microscope (STM) is dominated by sequential charge tunneling. Using P(E) theory we show that the Josephs ...

Amer Physical Soc2016

A nanoscale gigahertz source realized with Josephson scanning tunneling microscopy

Klaus Kern, Markus Etzkorn, Matthias Alexander Eltschka, Maximilian Assig

Using the AC Josephson effect in the superconductor-vacuum-superconductor tunnel junction of a scanning tunneling microscope (STM), we demonstrate the generation of GHz radiation. With the macroscopic STM tip acting as a lambda/4-monopole antenna, we first ...

Amer Inst Physics2015

Superconducting scanning tunneling microscopy tips in a magnetic field: Geometry-controlled order of the phase transition

Klaus Kern, Markus Etzkorn, Matthias Alexander Eltschka, Maximilian Assig

The properties of geometrically confined superconductors significantly differ from their bulk counterparts. Here, we demonstrate the geometrical impact for superconducting scanning tunneling microscopy (STM) tips, where the confinement ranges from the atom ...

Amer Inst Physics2015