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    Online Resource
    Online Resource
    IOP Publishing ; 1993
    In:  Japanese Journal of Applied Physics Vol. 32, No. 10R ( 1993-10-01), p. 4529-
    In: Japanese Journal of Applied Physics, IOP Publishing, Vol. 32, No. 10R ( 1993-10-01), p. 4529-
    Abstract: Superconducting epitaxial films of Ba 1- x K x BiO 3 have been synthesized by laser ablation using a stoichiometric target ( x =0.4). The films were deposited at substrate temperatures of 450–550°C in argon at the pressure of 1 Torr with successive annealing at 350°C in oxygen at pressure of 1 atm. The energy density of the laser was 1.5–2.5 J/cm 2 per pulse. The deposition temperature and the laser power affect the crystalline property, the superconducting property and the surface morphology. The film deposited at the substrate temperature of 510°C has the highest onset T c of 28 K. The films oriented with respect to 〈 100 〉 are found to be epitaxial, using a four-circle diffractometer. Cracking in the superconducting films is not found. The film on the MgO substrate with small lattice mismatch exhibits higher zero-resistance T c than those on the other substrates, SrTiO 3 and LaSrGaO 4 .
    Type of Medium: Online Resource
    ISSN: 0021-4922 , 1347-4065
    RVK:
    RVK:
    RVK:
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 1993
    detail.hit.zdb_id: 218223-3
    detail.hit.zdb_id: 797294-5
    detail.hit.zdb_id: 2006801-3
    detail.hit.zdb_id: 797295-7
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