Transport and magnetic properties of Sm-substituted BISCCO (2223) superconductors (Bi1.7Pb0.3Sr2Ca2-xSmxCu3Oy)

K. Nanda Kishore, S. Satyavathi, M. Muralidhar, V. Hari Babu, O. Peña

研究成果: Article査読

4 被引用数 (Scopus)

抄録

The transport and magnetic properties of Bi1.7Pb0.3Sr2Ca2-xSmxCu3Oy (0 ≤ x ≤ 2.0) have been studied. The X-ray diffraction (XRD) suggests that the (2223) phase degrades with Sm substitution and the compounds with x > 0.05 show only the (2212) phase. The (2212) phase is maintained till x=2.0. The d.c. resistivity and a.c. susceptibility measurements show that Tconset and Tc(0)'s decrease with increasing Sm content. The results can be explained on the basis of granular superconductivity. The d.c. magnetization measurements performed on the compounds reveal that with increasing Sm concentration, the superconducting volume and the lower critical field decrease. The thermoelectric power (TEP) measurements reveal that with increasing Sm content, the hole carrier concentration decreases. The XRD, d.c. resistivity, a.c. susceptibility, d.c. magnetization and TEP results are presented and compared with earlier results on Gd- and Y-substituted BISCCO (2223) system.

本文言語English
ページ(範囲)1519-1520
ページ数2
ジャーナルPhysica C: Superconductivity and its applications
235-240
PART 2
DOI
出版ステータスPublished - 1994 12月
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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