Magnetization and intragranular critical current density in Yb{sub 1}Ba{sub 2}Cu{sub 3}O{sub 7{minus}x} high temperature superconductor

Journal Article · Sat Dec 30 04:00:00 EST 1995 · International Journal of Modern Physics B

DOI:https://doi.org/10.1142/S0217979295001476· OSTI ID:194896

Mahmood, R; Khan, M N; Zafar, M S; Khwaja, F A; Waheed, A ^[1]

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1. Punjab Univ., Lahore (Pakistan). Dept. of Physics

The Yb{sub 1}Ba{sub 2}Cu{sub 3}O{sub 7{minus}x} samples have been prepared by the solid state reaction using the appropriate amount of Yb{sub 2}O{sub 3}, BaCO{sub 3}, and CuO powders and characterized them using X-ray diffraction and electrical resistivity techniques. The X-ray diffraction pattern of the sample shows an orthorhombic structure refined in the space group Pmmm. The critical current densities are calculated from magnetization measurements over a temperature range 77 K to 86 K, and in magnetic fields up to 2 KOe. The intragrain critical current density is estimated to range from 5.24 {times} 10{sup 6} (A/cm{sup 2}) at an applied field of 0.2 KOe to 1.01 {times} 10{sup 6} (A/cm{sup 2}) at an applied field of 2 KOe at T = 77 K in this sample.

• Sponsoring Organization: USDOE
• OSTI ID: 194896
• Journal Information: International Journal of Modern Physics B, Journal Name: International Journal of Modern Physics B Journal Issue: 28 Vol. 9; ISSN 0217-9792; ISSN IJPBEV
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
COPPER OXIDES
CRITICAL CURRENT
CRYSTAL STRUCTURE
CURRENT DENSITY
HIGH-TC SUPERCONDUCTORS
YTTERBIUM OXIDES