Enhanced 77 K vortex-pinning in Y Ba2Cu3O7−x films with Ba2Y TaO6 and mixed Ba2Y TaO6 + Ba2Y NbO6 nano-columnar inclusions with irreversibility field to 11 T
F. Rizzo,
A. Augieri,
A. Angrisani Armenio,
V. Galluzzi,
A. Mancini,
V. Pinto,
A. Rufoloni,
A. Vannozzi,
M. Bianchetti,
A. Kursumovic,
J. L. MacManus-Driscoll,
A. Meledin,
G. Van Tendeloo,
G. Celentano
Affiliations
F. Rizzo
ENEA, Frascati Research Centre, Via E. Fermi, 45, 00044 Frascati, Italy
A. Augieri
ENEA, Frascati Research Centre, Via E. Fermi, 45, 00044 Frascati, Italy
A. Angrisani Armenio
ENEA, Frascati Research Centre, Via E. Fermi, 45, 00044 Frascati, Italy
V. Galluzzi
ENEA, Frascati Research Centre, Via E. Fermi, 45, 00044 Frascati, Italy
A. Mancini
ENEA, Frascati Research Centre, Via E. Fermi, 45, 00044 Frascati, Italy
V. Pinto
ENEA, Frascati Research Centre, Via E. Fermi, 45, 00044 Frascati, Italy
A. Rufoloni
ENEA, Frascati Research Centre, Via E. Fermi, 45, 00044 Frascati, Italy
A. Vannozzi
ENEA, Frascati Research Centre, Via E. Fermi, 45, 00044 Frascati, Italy
M. Bianchetti
Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Rd., Cambridge CB3 0FS, United Kingdom
A. Kursumovic
Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Rd., Cambridge CB3 0FS, United Kingdom
J. L. MacManus-Driscoll
Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Rd., Cambridge CB3 0FS, United Kingdom
A. Meledin
EMAT Research Group, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
G. Van Tendeloo
EMAT Research Group, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
G. Celentano
ENEA, Frascati Research Centre, Via E. Fermi, 45, 00044 Frascati, Italy
Pulsed laser deposited thin Y Ba2Cu3O7−x (YBCO) films with pinning additions of 5 at. % Ba2Y TaO6 (BYTO) were compared to films with 2.5 at. % Ba2Y TaO6 + 2.5 at. % Ba2Y NbO6 (BYNTO) additions. Excellent magnetic flux-pinning at 77 K was obtained with remarkably high irreversibility fields greater than 10 T (YBCO-BYTO) and 11 T (YBCO-BYNTO), representing the highest ever achieved values in YBCO films.
