Annealing behavior of Ar ion irradiated Bi{sub 2}Sr{sub 2}Ca{sub n-1}Cu{sub n}O{sub 4+2n} superlattice and intergrowth films

Journal Article · Sun Dec 01 04:00:00 EST 1996 · Journal of Low Temperature Physics

DOI:https://doi.org/10.1007/BF00753879· OSTI ID:443661

Hatano, T; Kaise, M; Saito, K; Nakamura, K ^[1]

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1. National Research Institute for Metals, Sengen, Tsukuba (Japan); and others

Artificially layered Bi{sub 2}Sr{sub 2}Ca{sub n{minus}1}Cu{sub n}O{sub 4+2n} films were synthesized by sequential sputter deposition of BiO, SrCu{sub 0.5}O{sub 1.5} and CaCuO{sub 2} layers. Annealing behavior of these films which were irradiated by Ar ions was studied. Defect assisted improvement of their crystalline perfection is expected which might results in the improvement of the superconducting properties of these films. An artificial film, such as an intergrowth of 2223 and 2234 phases, and superstructure films of (2245){sub 1}(2201){sub 1} and (2234){sub 1}(2212){sub 1}, were irradiated by Ar ions (150 keV, 2 - 10x10{sup 12} ion/cm{sup 2}) and annealed at 730{degrees} C. An improvement of superconducting transition temperatures were observed.

• Sponsoring Organization: USDOE
• OSTI ID: 443661
• Report Number(s): CONF-960808--
• Journal Information: Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 5-6 Vol. 105; ISSN JLTPAC; ISSN 0022-2291
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANNEALING
BISMUTH OXIDES
CALCIUM OXIDES
COPPER OXIDES
COUPLING
HIGH-TC SUPERCONDUCTORS
LAYERS
PHYSICAL RADIATION EFFECTS
SPUTTERING
STRONTIUM OXIDES
SUPERCONDUCTING FILMS
TRANSITION TEMPERATURE