Irreversible properties of coated conductors deposited by PLD on textured technical substrates

Author

Vostner, A. ; Sun, Y.F. ; Tönies, S. ; Weber, H.W. ; Tomov, R.I. ; Kursumovic, A. ; Glowacki, B.A. ; Evetts, J.E. ; Tuissi, A. ; Villa, E.

Volume

13

Issue

2

fYear

2003

fDate

6/1/2003 12:00:00 AM

Firstpage

2603

Lastpage

2606

Abstract

Results on the angular and the field dependence of the critical transport current density as well as on the temperature dependence of the irreversibility fields in YBa₂Cu₃O_7-δ coated conductors are presented. The films were deposited by pulsed laser deposition on (Y₂O₃/YSZ/CeO₂) triple buffer structures. Either textured magnetic Ni-Fe alloys or recently developed nonmagnetic Ni-Cr-W alloys with good biaxial texture (8.4° and 9.4° for ω and φ scans) were used as substrates. The influence of artificial pinning centers, introduced by fast neutron irradiation, on the irreversible properties of the YBCO films is discussed.

Keywords

barium compounds; cerium compounds; chromium alloys; critical current density (superconductivity); flux pinning; high-temperature superconductors; iron alloys; magnetisation; nickel alloys; pulsed laser deposition; superconducting thin films; surface texture; tungsten alloys; yttrium compounds; zirconium compounds; Ni*Cr*W; Ni*Fe; Ni-Fe alloys; PLD; Y₂O₃-Y₂O₃ZrO₂-CeO₂; Y₂O₃/YSZ/CeO₂ triple buffer structures; YBa₂Cu₃O_7-δ; YBa₂Cu₃O_7-δ coated conductors; artificial pinning centers; biaxial texture; coated conductors; fast neutron irradiation; irreversibility fields; irreversible properties; nonmagnetic Ni-Cr-W alloys; textured technical substrates; Conductors; Current density; Magnetic field measurement; Magnetic films; Mechanical factors; Neutrons; Optical pulses; Pulsed laser deposition; Sun; Temperature dependence;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2003.811859

Filename

1212150