Characterization of epitaxial Bi2Sr2CaCu2O8+? thin films

Wagner, Patrick; Frey, Urban; Hillmer, F.; Hadish, A.; Jakob, G.; Adrian, H.; Steinborn, T.; Ranno, Laurent; Elschner, Andreas; Heyvaert, I.; Bruynseraede, Y.

doi:10.1007/bf00730398

Cited by 4 publications

(1 citation statement)

References 7 publications

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“…Furthermore, the presence of a plasma and high deposition pressures hamper the use of most in situ characterization methods such as LEED or RHEED, which are widely used in other approaches. Nevertheless, superlattices and multilayer HTS films have been grown with various sputter techniques (figure 7) (Suzuki et al 1994, Wagner et al 1994, Li et al 1994b, Satoh et al 1994 as well as multilayer heterostructures involving e.g. HTSs and magnetoresistive compounds (Jakob et al 1995).…”

Section: Sputter Techniquesmentioning

confidence: 99%

Growth of high-T_cthin films

Wördenweber

1999

Supercond. Sci. Technol.

116

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An overview of the deposition and deposition techniques (with the emphasis on PVD techniques) of high-T c material is presented. The major technologies are discussed and compared, and advantages and problems of various substrate materials are illustrated. The consequences connected with lattice mismatch are discussed, and film nucleation and growth modes of ceramic superconducting material are sketched. Finally, remaining areas for further research are listed.

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Section: Sputter Techniquesmentioning

confidence: 99%

Growth of high-T_cthin films

Wördenweber

1999

Supercond. Sci. Technol.

116

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In situ halide chemical vapor deposition of Bi₂Sr₂CaCu₂O_{8 + x} on silver substrates

Hårsta

Lundquist

1996

Chemical Vapor Deposition

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The superconducting Bi&zCaCuzOs+, phase is deposited on polycrystalline silver substrates by halide CVD in the temperature interval 760-820°C. Metal iodides and oxygen are used as precursor materials. The films grow with a pronounced [OOl] orientation, and a superconducting critical temperature of about 80 K was observed without any post-annealing. As far as the authors know, this is the first report of in situ CVD of the Bi-2212 phase on silver substrates. Some of the films were postannealed in a two-step process. The [ OO 11 orientation was now considerably improved, but the superconducting critical temperature was reduced to about 75 K.

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