Thermoelectric power studies on the Sm substituted BPSCCO (2223) superconductors

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

研究成果: Article査読

19 被引用数 (Scopus)

抄録

Measurements of the thermoelectric power have been carried out on Bi1.7Pb0.3Sr2Ca2-xSmxCu3Oy (0.0≤x ≤2.0) specimens between 77 K and 300 K. The hole-carrier concentrations were calculated from the room-temperature thermopower values and it was found to decrease with increasing Sm concentration. The temperature variation of the thermopower is similar for all the samples and has indicated a two-band conduction. The results also have suggested an increased interaction of electrons and holes with phonons at low temperatures. The thermopower has attained a maximum value just above the transition temperature and thereafter decreased with increasing temperature. The thermopower value has also undergone a sign change at a temperature which varied systematically with Sm concentration. The results are presented and discussed.

本文言語English
ページ(範囲)49-53
ページ数5
ジャーナルPhysica C: Superconductivity and its applications
252
1-2
DOI
出版ステータスPublished - 1995 10月 1
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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