Title :
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.
fDate :
6/1/2003 12:00:00 AM
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 YBa2Cu3O7-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; YBa2Cu3O7-δ; YBa2Cu3O7-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;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.811859
