CaltechAUTHORS
  A Caltech Library Service

High anisotropy and a dimensionality crossover in the irreversibility behavior of oxygen-deficient YBa_2Cu_3O_(7-y)

Gray, K. E. and Kim, D. H. and Veal, B. W. and Seidler, G. T. and Rosenbaum, T. F. and Farrell, D. E. (1992) High anisotropy and a dimensionality crossover in the irreversibility behavior of oxygen-deficient YBa_2Cu_3O_(7-y). Physical Review B, 45 (17). pp. 10071-10074. ISSN 1098-0121. https://resolver.caltech.edu/CaltechAUTHORS:20140707-163037568

[img]
Preview
PDF - Published Version
See Usage Policy.

199Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20140707-163037568

Abstract

The width in temperature of the reversible, lossy state of high-temperature superconductors (HTS's) in a magnetic field H depends on the degree of anisotropy. Compared to the parent compound YBa_2Cu_3O_(7-y), we show here that oxygen-deficient, YBa_2Cu_3O_(7-y) single crystals, in which T_c was varied from 10 to 55 K, are much more anisotropic and that the occurrence of the reversible, lossy state for the H parallel-to c axis is consistent with a crossover from three-dimensional (3D) vortex lines to 2D vortices, as recently proposed for the other highly anisotropic HTS's. These results, together with those from Tl_2Ba_2CaCu_2O_x and Bi_2Sr_2CaCu_2O_x, indicate universal behavior of almost isolated Cu-O bilayer units, albeit with different doping levels, and which display magnetic reversibility controlled by the residual weak interplanar coupling.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevB.45.10071DOIArticle
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.45.10071PublisherArticle
Alternate Title:High anisotropy and a dimensionality crossover in the irreversibility behavior of oxygen-deficient YBa2Cu3O7-y
Additional Information:© 1992 The American Physical Society. Received 25 November 1991. This work is partially supported by the U.S. Department of Energy, Division of Basis Energy Sciences- Materials Sciences (K.E.G. and D.H.K.) under Contract No. W-31-109-ENG-38 and the National Science Foundation (DMR 88-09854) through the Science and Technology Center for Superconductivity (G.T.S. and T.F.R.). The work at Case Western Reserve University (D.E.F.) was supported by NASA Grants No. NAG-3-814 and No. NCC 123 and by the National Science Foundation Grant No. NSF-DMR 89-13651.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)W-31-109-ENG-38
NSFDMR 88-09854
NASANAG-3-814
NASANCC 123
NSFDMR 89-13651
Issue or Number:17
Record Number:CaltechAUTHORS:20140707-163037568
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140707-163037568
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47013
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:09 Jul 2014 17:58
Last Modified:03 Oct 2019 06:48

Repository Staff Only: item control page