Effect of structural symmetry on the magnetic and superconducting properties in La1.875Ba0.125-xSrxCuO4

H. Goka, M. Fujita, Y. Ikeda, K. Yamada

研究成果: Article査読

6 被引用数 (Scopus)

抄録

We investigate interplay among magnetism, superconductivity and crystal structure of 1/8-doped La1.875 Ba0.125-xSrxCuO4 using single crystals. A step-like change in the superconducting transition temperature Tc takes place at a specific Sr concentration around x = 0.08. In the lower concentration region (x ≤ 0.075), Tc, is remarkably suppressed to around 10 K and weakly depends on x. Furthermore, a structural phase transition from low temperature orthorhombic (LTO) to low temperature tetragonal or Pccn phase occurs. At the transition an anomalous upturn of magnetic susceptibility is observed upon cooling under a magnetic field perpendicular to CuO2 plane. On the other hand, in the LTO phase with higher Sr concentration (x ≥ 0.085), Tc is nearly constant around 30 K.

本文言語English
ページ(範囲)256-259
ページ数4
ジャーナルPhysica C: Superconductivity and its applications
357-360
SUPPL. 2
DOI
出版ステータスPublished - 2001 8
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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「Effect of structural symmetry on the magnetic and superconducting properties in La<sub>1.875</sub>Ba<sub>0.125-x</sub>Sr<sub>x</sub>CuO<sub>4</sub>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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