Structural and superconducting properties of Bi-Sr-Ca-Cu superconductors studied by Fe doping

Journal Article · Tue May 01 04:00:00 EDT 1990 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.344880· OSTI ID:6947885

Tang, H; Qiu, Z Q; Du, Y W; Walker, J C ^[1]

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1. Department of Physics Department of Astronomy, The John Hopkins University, Baltimore, Maryland 21218 (USA)

1.5% of Fe has been substituted for Cu in several 2212'' and 2223'' Bi-Sr-Ca-Cu superconductors. All of the samples show a reduction of {ital T}{sub {ital c}} by about 13 K due to the Fe impurities. Moessbauer measurements at room temperature reveal structural characteristics such as stacking faults and intergrowth of different phases in these Bi-based compounds on the microscopic scale. The suppression of {ital T}{sub {ital c}} due to Fe doping in the Bi 2212'' or 2223'' system is comparable to that of the 123'' system, but much smaller than that of the 214'' system. The interplanar correlation existing in the 123'' and the Bi 2212'' and 2223''systems seems to play an important role in sustaining the high-temperature superconductivity and weakening the detrimental effect of impurity elements on superconductivity in these two systems.

• OSTI ID: 6947885
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 67:9; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
IRON ADDITIONS
IRON ALLOYS
MATERIALS
MOESSBAUER EFFECT
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STACKING FAULTS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE