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Long Gd-123 coated conductor by PLD method

✍ Scribed by H. Fuji; M. Igarashi; Y. Hanada; T. Miura; S. Hanyu; K. Kakimoto; Y. Iijima; T. Saitoh

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
774 KB
Volume
468
Category
Article
ISSN
0921-4534

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✦ Synopsis

We have developed long Gd-123 coated conductors by ion-beam-assisted deposition (IBAD) and pulsedlaser-deposition (PLD) method. Recently, large-scale reel-to-reel apparatus with the 110 cm Γ‚ 15 cm assisting ion source was introduced to IBAD system. It was enable to produce 500 m-class IBAD-Gd 2 Zr 2 O 7 (GZO) tapes with D/ of below 15Β°and high throughputs of 3 m/h. Furthermore, apparatus with multilane and laser scanning was introduced to PLD system. As a result, end to end I c of 318 A were obtained for a 201.5 m long tape, and I c Γ‚ L values were 64,077 Am. Furthermore, 500 m-class deposition was carried out by improving PLD conditions. As a result, I c Γ‚ L values of 112,166 Am was obtained and it's a world record on August 2007. In the short samples, I c of over 500 A was obtained with Gd-123 thickness of 2.0 lm and over 100 A was obtained in magnetic field of 3 T, perpendicular to c-axis.

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