Preparation of Double-Sided YBCO Films on LaAlO3 by MOD Using Commercially Available Coating Solution

Takaaki MANABE
Jun Hyun AHN
Iwao YAMAGUCHI
Mitsugu SOHMA
Wakichi KONDO
Ken-ichi TSUKADA
Kunio KAMIYA
Susumu MIZUTA
Toshiya KUMAGAI

Publication
IEICE TRANSACTIONS on Electronics   Vol.E89-C    No.2    pp.186-190
Publication Date: 2006/02/01
Online ISSN: 1745-1353
DOI: 10.1093/ietele/e89-c.2.186
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Superconducting High-frequency Devices)
Category: 
Keyword: 
double-sided superconducting film,  large-size film,  YBa2Cu3O7,  LaAlO3,  metal organic deposition,  

Full Text: PDF(951.3KB)>>
Buy this Article


Summary: 
The 5-cm-diameter double-sided YBa2Cu3O7 (YBCO) films were prepared by metal organic deposition (MOD) using a commercially available metal-naphthenate coating solution. Firstly, YBCO film was prepared by MOD on one side of a double-side-polished 5-cm-diameter LaAlO3 substrate. Secondly, another side was similarly coated with YBCO by MOD. After the latter processing, degradation of average Jc value in the first side was not observed; but the fluctuation of critical current density Jc slightly increased. The double-sided YBCO films showed average Jc values of 0.8-1.0 MA/cm2 at 77 K and microwave surface resistances Rs(12 GHz) of 0.86-1.07 mΩ at 70 K.