Transport properties of the superconducting YBa{sub 2}Cu{sub 3}O{sub 7-{delta}}-DyBa{sub 2}SnO{sub 5.5} percolation system

Journal Article · Sat Jun 01 00:00:00 EDT 1996 · Journal of Superconductivity

DOI:https://doi.org/10.1007/BF00727556· OSTI ID:457458

Kumar, K S; Kurian, J; Koshy, J ^[1]

---

1. Regional Research Lab., Trivandrum (India)

The electrical transport properties and percolation behavior of superconducting YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}}-DyBa{sub 2}SnO{sub 5.5}, a superconductor-insulator composite system, have been studied by X-ray diffraction and temperature-resistivity measurements. The normal-state percolation threshold in {approximately}22 vol.% of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} and the superconducting percolation threshold is {approximately}30 vol.% of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} and a ceramic insulator DyBa{sub 2}SnO{sub 5.5}, even when the two materials were mixed thoroughly and sintered at 1020{degree}C. The implications are discussed.

• Sponsoring Organization: USDOE
• OSTI ID: 457458
• Journal Information: Journal of Superconductivity, Journal Name: Journal of Superconductivity Journal Issue: 3 Vol. 9; ISSN JOUSEH; ISSN 0896-1107
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
CHARGE TRANSPORT
COMPOSITE MATERIALS
COPPER OXIDES
DYSPROSIUM OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL INSULATORS
HIGH-TC SUPERCONDUCTORS
TIN OXIDES
YTTRIUM OXIDES