High T sub c Superconductivity of RF-Sputtered Er--Ba--Cu--O Films

High T sub c Superconductivity of RF-Sputtered Er--Ba--Cu--O Films

High T sub c superconductivity films were prepared by rf sputtering. The films revealed superconducting transition temperatures for onset and zero resistance of 95K and 84K, respectively. Although the X-ray diffraction measurement showed the film consists of an orthorhombic structure with the lattic...

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Veröffentlicht in:Jpn. J. Appl. Phys. 2, Lett Lett, 1987-09, Vol.26 (9), p.L1462-L1464
Hauptverfasser: Tonouchi, M, Yoshizako, Y, Takahashi, T
Format: Artikel
Sprache:eng
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Zusammenfassung:High T sub c superconductivity films were prepared by rf sputtering. The films revealed superconducting transition temperatures for onset and zero resistance of 95K and 84K, respectively. Although the X-ray diffraction measurement showed the film consists of an orthorhombic structure with the lattice constants a, b and c, respectively, of 3.883 A, 3.830 A and 11.70 A, most of the surface layer was found by electron spectroscopy for chemical analysis (ESCA) to be significantly Er-deficient. 18 ref.--AA
ISSN:0021-4922