wovepaper — the arXiv observatory

papers

Publications (13)

cond-mat.supr-con2024

YBa $_{2}$ Cu $_{3}$ O $_{7}$ 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 YBa $_{2}$ Cu $_{3}$ O $_{7}$ thin f…

cond-mat.supr-con2026

Tailoring the properties of YBa $_{2}$ Cu $_{3}$ O $_{7 - I^´}$ 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…

cond-mat.supr-con2024

Temporal Evolution of Defects and Related Electric Properties in He-Irradiated YBa $_{2}$ Cu $_{3}$ O $_{7 - I^´}$ Thin Films

Sandra Keppert, Bernd Aichner, Philip Rohringer +8

Thin films of the superconductor YBa $_{2}$ Cu $_{3}$ O $_{7 - I^´}$ (YBCO) were modified by low-energy light-ion irradiation employing collimated or focused He $^{+}$ beams, and the long-term st…

cond-mat.supr-con2009

Imaging of order parameter induced $I ¨ $ phase shifts in cuprate superconductors by low-temperature scanning electron microscopy

Christian GÃ¼rlich, Edward Goldobin, Rainer Straub +6

Low-temperature scanning electron microscopy (LTSEM) has been used to image the supercurrent distribution in ramp-type Josephson junctions between Nb and either the electron-doped…

cond-mat.supr-con2024

Vortex matching at 6 T in YBa $_{2}$ Cu $_{3}$ O $_{7 - I^´}$ 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…

cond-mat.mes-hall2026

Electric-Field Control of Quantum Tunneling Regimes in Focused He-Ion-Beam-Irradiated Oxide Interfaces

Yu Chen, Maria D'Antuono, Robin Hutt +6

Helium focused ion beam irradiation enables the fabrication of tunnel field-effect transistors based on two-dimensional electron systems (2DESs) at an oxide interface.High resoluti…

cond-mat.supr-con2022

Ordered Bose Glass of Vortices in Superconducting YBa $_{2}$ Cu $_{3}$ O $_{7 - I^´}$ Thin Films with a Periodic Pin Lattice Created by Focused Helium Ion Irradiation

Lucas Backmeister, Bernd Aichner, Max Karrer +5

The defect-rich morphology of YBa $_{2}$ Cu $_{3}$ O $_{7 - I^´}$ (YBCO) thin films leads to a glass-like arrangement of Abrikosov vortices which causes the resistance to disappear in vani…

nlin.PS2002

Progressive motion of an ac-driven kink in an annular damped system

Edward Goldobin, Boris A. Malomed, Alexey V. Ustinov

A novel dynamical effect is presented: systematic drift of a topological soliton in ac-driven weakly damped systems with periodic boundary conditions. The effect is demonstrated in…

cond-mat.stat-mech2024

Fractional positional jumps in stochastic systems with tilted periodic double-well potentials

Martin Å½onda, Wolfgang Belzig, Edward Goldobin +1

We present a theoretical investigation of the stochastic dynamics of a damped particle in a tilted periodic potential with a double well per period. By applying the matrix continue…

cond-mat.supr-con2008

Semifluxon molecule under control

Andreas Dewes, Tobias Gaber, Dieter Koelle +2

Josephson junctions with a phase drop pi in the ground state allow to create vortices of supercurrent carrying only half of the magnetic flux quantum Phi_0~2.07*10^-15 Wb. Such sem…

cond-mat.supr-con2025

YBa $_{2}$ Cu $_{3}$ O $_{7}$ nano-constriction Josephson junctions and SQUIDs fabricated by focused helium-ion-beam irradiation

Christoph Schmid, Christopher Buckreus, David Haas +9

By focused $30 keV$ He ion beam irradiation, epitaxially grown YBa $_{2}$ Cu $_{3}$ O $_{7}$ (YBCO) thin films can be driven from the superconducting to the insulating state with in…

cond-mat.supr-con2023

Angle-dependent Magnetoresistance of an Ordered Bose Glass of Vortices in YBa $_{2}$ Cu $_{3}$ O $_{7 - I^´}$ Thin Films with a Periodic Pinning~Lattice

Bernd Aichner, Lucas Backmeister, Max Karrer +5

The competition between intrinsic disorder in superconducting YBa $_{2}$ Cu $_{3}$ O $_{7 - I^´}$ (YBCO) thin films and an ultradense triangular lattice of cylindrical pinning centers spac…

cond-mat.supr-con2026

Structural Changes and Transport Properties of $YB a_{2} C u_{3} O_{7}$ 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…

Publications (13)

YBa2​Cu3​O7​ Josephson diode operating as a high-efficiency ratchet

Tailoring the properties of YBa2​Cu3​O7−I^´​ thin films by 30 keV He+ irradiation: An enabling route to superconducting device nanopatterning

Temporal Evolution of Defects and Related Electric Properties in He-Irradiated YBa2​Cu3​O7−I^´​ Thin Films

Imaging of order parameter induced I¨ phase shifts in cuprate superconductors by low-temperature scanning electron microscopy

Vortex matching at 6 T in YBa2​Cu3​O7−I^´​ thin films by imprinting a 20 nm-periodic pinning array with a focused helium ion beam

Electric-Field Control of Quantum Tunneling Regimes in Focused He-Ion-Beam-Irradiated Oxide Interfaces

Ordered Bose Glass of Vortices in Superconducting YBa2​Cu3​O7−I^´​ Thin Films with a Periodic Pin Lattice Created by Focused Helium Ion Irradiation

Progressive motion of an ac-driven kink in an annular damped system

Fractional positional jumps in stochastic systems with tilted periodic double-well potentials

Semifluxon molecule under control

YBa2​Cu3​O7​ nano-constriction Josephson junctions and SQUIDs fabricated by focused helium-ion-beam irradiation

Angle-dependent Magnetoresistance of an Ordered Bose Glass of Vortices in YBa2​Cu3​O7−I^´​ Thin Films with a Periodic Pinning~Lattice

Structural Changes and Transport Properties of YBa2​Cu3​O7​ Locally Modified by a He+ Focused Ion Beam

YBa $_{2}$ Cu $_{3}$ O $_{7}$ Josephson diode operating as a high-efficiency ratchet

Tailoring the properties of YBa $_{2}$ Cu $_{3}$ O $_{7 - I^´}$ thin films by 30 keV He $^{+}$ irradiation: An enabling route to superconducting device nanopatterning

Temporal Evolution of Defects and Related Electric Properties in He-Irradiated YBa $_{2}$ Cu $_{3}$ O $_{7 - I^´}$ Thin Films

Imaging of order parameter induced $I ¨ $ phase shifts in cuprate superconductors by low-temperature scanning electron microscopy

Vortex matching at 6 T in YBa $_{2}$ Cu $_{3}$ O $_{7 - I^´}$ thin films by imprinting a 20 nm-periodic pinning array with a focused helium ion beam

Ordered Bose Glass of Vortices in Superconducting YBa $_{2}$ Cu $_{3}$ O $_{7 - I^´}$ Thin Films with a Periodic Pin Lattice Created by Focused Helium Ion Irradiation

YBa $_{2}$ Cu $_{3}$ O $_{7}$ nano-constriction Josephson junctions and SQUIDs fabricated by focused helium-ion-beam irradiation

Angle-dependent Magnetoresistance of an Ordered Bose Glass of Vortices in YBa $_{2}$ Cu $_{3}$ O $_{7 - I^´}$ Thin Films with a Periodic Pinning~Lattice

Structural Changes and Transport Properties of $YB a_{2} C u_{3} O_{7}$ Locally Modified by a He $^{+}$ Focused Ion Beam