[ital I]-[ital V] characteristics and the superconducting transition in polycrystalline YBa[sub 2]Cu[sub 3]O[sub 7[minus][delta]]

Journal Article · Sun Aug 01 00:00:00 EDT 1993 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.48.3423· OSTI ID:5578956

Tiernan, W M; Joshi, R; Hallock, R B ^[1]

---

1. Laboratory for Low Temperature Physics, Department of Physics Astronomy, University of Massachusetts, Amherst, Massachusetts 01003 (United States)

We report experimental measurements of [rho]([ital T]) and [chi][sub ac]([ital T]) performed on four polycrystalline sintered YBa[sub 2]Cu[sub 3]O[sub 7[minus][delta]] samples that characterize the granular superconducting properties of these samples. We report [ital I]-[ital V] isotherm measurements near the superconducting transition at selected magnetic fields 0.5[le][ital H][le]80.9 G for two of the samples. The observed [ital I]-[ital V] isotherms are consistent with recent predictions of superconducting [ital I]-[ital V] scaling, with critical exponents [nu][approx]1.3--1.6 and [ital z][approx]2.6--3.4.

• OSTI ID: 5578956
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 48:5; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
GRAIN BOUNDARIES
GRANULAR MATERIALS
HIGH-TC SUPERCONDUCTORS
ISOTHERMS
JOSEPHSON EFFECT
MATERIALS
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYCRYSTALS
SCALING LAWS
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES