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Synthesis of As-grown superconducting MgB2 thin films by sputtering method

✍ Scribed by M. Akinaga

Publisher: Elsevier Science
Year: 2003
Tongue: English
Weight: 357 KB
Volume: 43
Category: Article
ISSN: 0011-2275
DOI: 10.1016/s0011-2275(03)00164-4

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✦ Synopsis

As-grown superconducting MgB 2 thin films were prepared by very simple RF sputtering method using a single target without post-annealing process. A two-component target comprising of many small chunks of B on a Mg disk was used. The films were deposited onto polished single crystal sapphire (R-plane) or SrTiO 3 (1 1 1) substrates at rather low temperatures ranging from 100 to 110 °C. Five samples on SrTiO 3 substrate and one on sapphire showed zero resistivity at about 15 K and onset at about 20 K with measuring the resistance versus temperature (R-T curves) and the current versus voltage curves (I-V curve).

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