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Sputtering synthesis of as-grown superconducting BiSrCaCuO thin film with single high-Tc phase

✍ Scribed by Hiroshi Yamamoto; Manabu Katoh; Kenji Satoh; Toshiyuki Nakamura; Masaichi Tanaka

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 383 KB
Volume: 165-166
Category: Article
ISSN: 0921-4526
DOI: 10.1016/s0921-4526(09)80326-8

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✦ Synopsis

A BiZSrZCa2Cul010 film with a single high-Tc phase was reactively deposited on MgO (100) substrates at about 700"I by a facing targets sputtering technique. The as-grown film showed Tcon of 95 K and Tcend of 49 K. It is found from discussions based on a x-ray diffraction analysis or a x-ray photoelectron spectroscopy that the superconductivity is reduced by imperfections of the crystal: an intergrowth and a site disorde1

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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