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

Autor: 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
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: APL Materials, Vol 4, Iss 6, Pp 061101-061101-7 (2016)
Druh dokumentu: article
ISSN: 2166-532X
DOI: 10.1063/1.4953436
Popis: 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.
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