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 u low-temperature deposition and properties of Bi(Pb)-Sr-Ca-Cu-O thin films prepared by magnetron sputtering

Jedamzik, D.; Barnard, Bryand Robert; Harrison, Mark; Freeman, W. G.; Howard, P. J.

doi:10.1063/1.102517

Cited by 25 publications

(1 citation statement)

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“…This type of annealing causes undesirable substrate interactions and also induces surface roughness which makes a device fabrication difficult [5,6]. To obtain high quality thin films, one must carefully choose a suitable substrate and an optimal thermal treatment (partial melting temperature, annealing temperature and time, cooling rate, etc.).…”

Section: Introductionmentioning

confidence: 99%

Production of BiPbSrCaCuO Thin Films on MgO and Ag/MgO Substrates by Electron Beam Deposition Techniques

Varılcı

Altunbaş

Görür

et al. 2002

phys. stat. sol. (a)

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Superconducting BiPbSrCaCuO thin films were prepared on MgO(001) and Ag/MgO substrates using an electron beam (e‐beam) evaporation technique. The effects of annealing temperature and Ag diffusion on the crystalline structure and some superconducting properties, respectively, were investigated by X‐ray diffraction, atomic force microscopy, and by measurements of the critical temperature and the critical current density. It was shown that an annealing of both types of films at 845 or 860 °C resulted in the formation of mixed Bi‐2223 and Bi‐2212 phases with a high degree of preferential orientation with the c‐axis perpendicular to the substrates. The slight increase of the critical temperature from 103 K to 105 K, the enhancement of the critical current density from 2 × 103 to 6 × 104 A/cm2, and the improved surface smoothness are due to a possible silver doping from the substrate.

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Section: Introductionmentioning

confidence: 99%