Published October 1, 1990 | Version v1
Journal article Metadata-only

Universality in the current decay and flux creep of Y-Ba-Cu-O high-temperature superconductors

Creators

  • 1. Universite Paris-Sud, Physique des Solides, Batiment 510, Orsay (France)
  • 2. IBM Research, Yorktown Heights, NY (USA)

Description

Recent data on flux creep in a variety of Y-Ba-Cu-O superconductors show a temperature-independent plateau in the magnetization decay S≡-d lnM(t)/d ln(t), with values clustered in the range S=0.020--0.035. This apparent universality in S, which appears at odds with conventional flux-creep theories, can be explained naturally if one assumes the existence of a truly superconducting ordered phase at low temperatures that has a strongly nonlinear (exponential) I-V characteristic

Additional details

Publishing Information

Journal Title
Physical Review, B: Condensed Matter
Journal Volume
42
Journal Issue
10
Series
Phys. Rev., B: Condens. Matter.
Journal Page Range
6784-6786
ISSN
0163-1829
CODEN
PRBMD

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
22042645
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BARIUM OXIDES; COPPER OXIDES; HIGH-TC SUPERCONDUCTORS; MAGNETIC FLUX; MAGNETIZATION; TIME DEPENDENCE; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS