6 papers · 1 filter
Tailoring the properties of YBaCuO thin films by 30 keV He irradiation: An enabling route to superconducting device nanopatterning
Bernd Aichner, Simon Koch, Philipp A. Korner +8
Focused helium ion beam (He-FIB) irradiation with 30 keV ions is a key tool for nanoscale patterning and defect engineering in high transition temperature (Tc) cuprate superconduct…
Structural Changes and Transport Properties of Locally Modified by a He Focused Ion Beam
Ross Carter, Robin Hutt, Paul Zimmermann +9
Irradiation of a material with ions can cause various defects that can lead to structural phase transitions and the modification of the material's properties. Here we study the irr…
YBaCuO nano-constriction Josephson junctions and SQUIDs fabricated by focused helium-ion-beam irradiation
Christoph Schmid, Christopher Buckreus, David Haas +9
By focused He ion beam irradiation, epitaxially grown YBaCuO (YBCO) thin films can be driven from the superconducting to the insulating state with in…
YBaCuO Josephson diode operating as a high-efficiency ratchet
Christoph Schmid, Alireza Jozani, Reinhold Kleiner +2
Using a focused He beam for nanopatterning and writing of Josephson barriers we fabricated specially shaped Josephson junctions of in-line geometry in YBaCuO thin f…
Temporal Evolution of Defects and Related Electric Properties in He-Irradiated YBaCuO Thin Films
Sandra Keppert, Bernd Aichner, Philip Rohringer +8
Thin films of the superconductor YBaCuO (YBCO) were modified by low-energy light-ion irradiation employing collimated or focused He beams, and the long-term st…
Vortex matching at 6 T in YBaCuO thin films by imprinting a 20 nm-periodic pinning array with a focused helium ion beam
Max Karrer, Bernd Aichner, Katja Wurster +9
Controlled engineering of vortex pinning sites in copper-oxide superconductors is a critical issue in manufacturing devices based on magnetic flux quanta. To address this, we emplo…