Flux Dynamics in High-Temperature Superconductors With Microscale Irradiation-Modified Regions

Author

Gerbaldo, R. ; Amato, A. ; Ghigo, G. ; Gozzelino, L. ; Laviano, F. ; Minetti, B. ; Rovelli, A. ; Mezzetti, E.

Author_Institution

INFN-Sez., Torino

Volume

17

Issue

2

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

3660

Lastpage

3663

Abstract

In this paper, we investigate the electrodynamical properties of YBa₂Cu₃O_7-chi strip-shaped films, which were locally modified by confined heavy-ion irradiation. The irradiations were made by means of 4.2 GeV gold ions. Quantitative magneto-optical imaging as well as in-field transport characterizations show how the irradiated regions locally react to an external electromagnetic perturbation, thus allowing its localization and measurement. Aiming at future applications, the main issues about the detector sensitivity, such as the role of interfaces between irradiated and pristine regions, are addressed.

Keywords

barium compounds; electrodynamics; high-temperature superconductors; ion beam effects; ion beam lithography; magneto-optical effects; mixed state; superconducting thin films; yttrium compounds; YBa₂Cu₃O_7-chi; electrodynamics; electromagnetic perturbation; electron volt energy 4.2 GeV; flux dynamics; gold ions; heavy-ion irradiation; high-temperature superconductors; magneto-optical imaging; microscale irradiation-modified regions; strip-shaped films; Detectors; Electromagnetic measurements; Electromagnetic radiation; Gold; High temperature superconductors; Lithography; Magnetic confinement; Magnetic field measurement; Superconducting films; Yttrium barium copper oxide; Confined heavy-ion irradiation; high temperature superconductors; magnetic field detector;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2007.899987

Filename

4278099