Published January 3, 1994 | Version v1
Journal article Metadata-only

Measurement of current voltage characteristics of single grain boundaries in melt textured bulk YBa2Cu3Ox

Creators

  • 1. Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695 (United States)

Description

We have investigated the electrical properties of small parts of single grain boundaries in melt textured YBa2Cu3Ox. Similar measurements on grain boundary networks were also made to obtain composite properties. The results of Tc measurements and current-voltage characteristics in zero and small magnetic fields are presented. The R(T) characteristics suggest that there is second phase segregation in some parts of the grain boundary area. The current-voltage characteristics showed three different types of behavior: Resistive, Josephson-like, and flux flow. The Ic(B) data of Josephson junctions suggest that nonsuperconducting inclusions divide the grain boundaries into smaller single junctions

Additional details

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
64
Journal Issue
1
Journal Page Range
p. 109-111.
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
25039330
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BARIUM OXIDES; COPPER OXIDES; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; GRAIN BOUNDARIES; HIGH-TC SUPERCONDUCTORS; JOSEPHSON EFFECT; MAGNETIC FLUX; MELTING; TEXTURE; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CRYSTAL STRUCTURE; MICROSTRUCTURE; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS