NDLI: High-Ic HoBCO coated conductors by PLD method

Content Provider	IEEE Xplore Digital Library
Author	Ohmatsu, K. Hahakura, S. Hasegawa, K. Ueyama, M.
Copyright Year	2002
Abstract	Ho/sub 1/Ba/sub 2/Cu/sub 3/O/sub x/ (HoBCO) coated conductors by using Pulsed Laser Deposition (PLD) have been developed on textured Ni-alloy substrates. Hetero-epitaxial growth of CeO/sub 2//YSZ/CeO/sub 2/ was developed to introduce in-plane alignment for buffer layers. CeO/sub 2/ seed and cap layers were deposited by RF sputtering. YSZ diffusion layer was deposited by PLD. The most advantage of buffer layers are high growth rate and large deposition area by using in-plane alignment of textured substrate. This was demonstrated by a high production speed of buffer layers. CeO/sub 2/ and YSZ buffer layers show a high production speed of 7 m/h and 8 m/h, respectively. As for the HoBCO deposition, a production speed of 10 m/h was demonstrated by using high growth rate of 4 /spl mu/m/min in our PLD process. Ic of the short sample reached 357 A/cm-width at 77 K, 0 T, and 2,423 A/cm-width at 30 T, 4.2 K. Long length HoBCO conductors up to 35 m were performed by using reel to reel tape transfer system of each process.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	2715
Ending Page	2718
Page Count	4
File Size	323572
File Format	PDF
ISSN	10518223
Volume Number	15
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Conductors Buffer layers Substrates High temperature superconductors Pulsed laser deposition Sputtering Radio frequency Production Superconducting cables Superconducting epitaxial layers thin film High- Ho-123 pulsed laser deposition
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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