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Growth of a-axis oriented YBa2Cu3O7-x thin films on LaSrGaO4 and SrTiO3 single crystal substrates by off-axis rf sputtering

✍ Scribed by Yong Ki Park; Dong Han Ha; Keunseop Park; Jong-Chul Park

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 190 KB
Volume: 235-240
Category: Article
ISSN: 0921-4534
DOI: 10.1016/0921-4534(94)91525-3

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✦ Synopsis

YBa,Cu,O,_x superconducting thin films with a-axis perpendicular to the substrate were grown on both LaSrGaO, (100) and SrTiO, (100) single crystals by off-axis rf sputtering and their properties were compared. The film grown at 740 "C on a self-template layer grown in situ at 650 "C on LaSrGaO, (100) substrate showed almost 100% a-axis orientation and had Tc (zero) of 83 K. Anisotropy of the resistivity was measured and correlated with the in-plane orientation observed by polarized Raman spectroscopy.

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