The effect of partial Lu doping on magnetic behaviour of YBCO (123) superconductors

ÖZTÜRK A., Duzgun I., Celebi S.

JOURNAL OF ALLOYS AND COMPOUNDS, vol.495, no.1, pp.104-107, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 495 Issue: 1
  • Publication Date: 2010
  • Doi Number: 10.1016/j.jallcom.2010.01.095
  • Journal Name: JOURNAL OF ALLOYS AND COMPOUNDS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.104-107
  • Recep Tayyip Erdoğan University Affiliated: Yes

Abstract

We have investigated the effect of Lutetium doping on YBCO prepared by conventional solid-state reaction method by means of XRD, AC susceptibility and DC magnetization measurements and theoretical analysis. AC susceptibility measurements for sintered YBCO pellets have been performed as a function of temperatures at constant frequency and AC field amplitude in the absence of DC bias field. The critical current densities as a function of temperature have been estimated from the AC susceptibility data. DC magnetization measurements were done at 20K and 77K upon zero field cooling (ZFC) process. 50% Lu substitution for Y on YBCO superconductors improves the critical current density and lower critical field Ho at low temperature region (at 20K). (C) 2010 Elsevier B.V. All rights reserved.