Superconducting behavior of high-[Tc] YBa[sub 2]Cu[sub 3]O[sub 7] thin films with BaO impurity produced by pulsed laser deposition

Journal Article · Mon Aug 01 00:00:00 EDT 1994 · Journal of Superconductivity; (United States)

DOI:https://doi.org/10.1007/BF00721652· OSTI ID:6765698

Xu, S F; Tian, Y J; Lu, H B; Chen, Z H; Cui, D F; Zhou, Y L; Zhang, J L; Li, L; Yang, G Z ^[1]

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1. Institute of Physics, Beijing (China)

The authors have investigated the superconducting behavior of high-[Tc] YBa[sub 2]Cu[sub 3]O[sub 7] (YBCO) thin films containing BaO impure phase produced by pulsed laser deposition. The thin films were characterized by the standard four-probe method, X-ray diffraction (XRD), and scanning electron microscopy (SEM). XRD showed that all these thin films contained BaO impurity, with the c-axis normal to the surface of the substrates. The presence of impurity existed from substrate temperature T[sub s] of 727 to 796[degrees]C. When these thin films with BaO impurity were measured under the magnetic fields, it was found that the critical current density J[sub c] increased slightly with increase in magnetic field B within the range of B [le] 500 G, in the case of B perpendicular to the c-axis of the film.

• OSTI ID: 6765698
• Journal Information: Journal of Superconductivity; (United States), Vol. 7:4; ISSN 0896-1107
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
CRITICAL CURRENT
IMPURITIES
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
YTTRIUM OXIDES
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CURRENTS
ELECTRIC CURRENTS
OXIDES
OXYGEN COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360207* - Ceramics
Cermets
& Refractories- Superconducting Properties- (1992-)