Micro-structure and magnetization of the 80-K superconductor, TbSr 2Cu2.7Mo0.3O7+δ

V. P.S. Awana*, Anurag Gupta, H. Kishan, M. Karppinen, H. Yamauchi, A. V. Narlikar, E. Galstyan, I. Feiner

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The results of micro-structural and detailed magnetization studies are reported here for our recently published TbSr2Cu2.7Mo 0.3O7+δ superconductor with a transition temperature (Tc) at as high as 80K [V.P.S. Awana, A. Gupta, H. Kishan, E. Takayama-Muromachi, T. Watanabe, M. Karppinen, H. Yamauchi, S.K. Malik, W.B. Yelon, V. Ganesan, A.V. Narlikar, Solid State Commun. 129 (2003) 117]. From XRD and EDX the sample was confirmed to be of single-phase and possess the nominal cation stoichiometry. The SEM images showed well-developed grains for this ceramic high-Tc superconductor. Magnetization measurements at various temperatures and fields revealed bulk superconductivity below 80 K. Magnetization versus applied field (M vs H) loops at various temperatures below the Tc exhibited clear full penetration field HP. In normal state (>100K) the susceptibility follows the Curie-Weiss behavior with an effective paramagnetic moment of 9.83 μB.

Original languageEnglish
Pages (from-to)69-73
Number of pages5
JournalPHYSICA C: SUPERCONDUCTIVITY AND ITS APPLICATIONS
Volume415
Issue number1-2
DOIs
Publication statusPublished - 1 Oct 2004
MoE publication typeA1 Journal article-refereed

Keywords

  • Bulk superconductivity
  • EDX
  • Magnetization
  • Micro-structure
  • SEM
  • TbSr CuMoO compound

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