Flux turbulence in NdBa2Cu3O6+x and underdoped YBa2Cu3O6+x single crystals

Authors
Frello, T Baziljevich, M Johansen, TH Andersen, NH Wolf, T Koblischka, MR
Citation
T. Frello et al., Flux turbulence in NdBa2Cu3O6+x and underdoped YBa2Cu3O6+x single crystals, PHYS REV B, 59(10), 1999, pp. R6639-R6642
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
59
Issue
10
Year of publication
1999
Pages
R6639 - R6642
Database
ISI
SICI code
0163-1829(19990301)59:10<R6639:FTINAU>2.0.ZU;2-P
Abstract
Magnetic flux turbulence was observed in single crystals of NdBa2Cu3O6+x ne ar-optimally doped (x approximate to 1) and underdoped YBa2Cu3O6-x (x=0.50, 0.82) using magneto-optical imaging. Such turbulent phenomena have so far b een reported only for YBa2Cu3O6+x high-quality single crystals with optimal doping. The crystals were also characterized in terms of critical current density j(c), anisotropy gamma, and oxygen content/superstructure. The infl uence of these parameters on the turbulent behavior is discussed. [S0163-18 29(99)50506-7].