Ordered Bose Glass of Vortices in Superconducting YBa${}_2$Cu${}_3$O${}_{7-\delta }$ Thin Films with a Periodic Pin Lattice Created by Focused Helium Ion Irradiation

Abstract

The defect-rich morphology of YBa${}_2$Cu${}_3$O${}_{7-\delta }$ (YBCO) thin films leads to a glass-like arrangement of Abrikosov vortices which causes the resistance to disappear in vanishing current densities. This vortex glass consists of entangled vortex lines and is identified by a characteristic scaling of the voltage-current isotherms. Randomly distributed columnar defects stratify the vortex lines and lead to a Bose glass. Here, we report on the observation of an ordered Bose glass in a YBCO thin film with a hexagonal array of columnar defects with 30 nm spacings. The periodic pinning landscape was engineered by a focused beam of 30 keV He${}^{+}$ ions in a helium-ion microscope.

10 pages, 4 figures

References in corpus (3)

• Josephson junctions and SQUIDs created by focused helium ion beam irradiation of YBa${}_2$Cu${}_3$O${}_7$
• The Dynamics of Magnetic Vortices in Type II Superconductors with Pinning Sites Studied by the Time Dependent Ginzburg-Landau Model
• Angular magnetic-field dependence of vortex matching in pinning lattices fabricated by focused or masked helium ion beam irradiation of superconducting YBa${}_2$Cu${}_3$O${}_{7-\delta }$ thin films

Cited by in corpus (7)

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• Angle-dependent Magnetoresistance of an Ordered Bose Glass of Vortices in YBa${}_2$Cu${}_3$O${}_{7-\delta }$ Thin Films with a Periodic Pinning~Lattice
• Nanostructured Superconductors
• Quantum Interference by Vortex Supercurrents
• Superconductivity in Nanosystems: A Fruitful Path to New Phenomenology in Quantum Materials