Homologous series of iron pnictide oxide superconductors (Fe 2As2) [Can+1 (Sc,Ti)nOy] (n=3,4,5) with extremely thick blocking layers

Hiraku Ogino; Shinya Sato; Kohji Kishio; Jun Ichi Shimoyama; Tetsuya Tohei; Yuichi Ikuhara

doi:10.1063/1.3478850

Homologous series of iron pnictide oxide superconductors (Fe ₂As₂) [Ca_n+1 (Sc,Ti)_nO_y] (n=3,4,5) with extremely thick blocking layers

Hiraku Ogino, Shinya Sato, Kohji Kishio, Jun Ichi Shimoyama, Tetsuya Tohei, Yuichi Ikuhara

Research output: Contribution to journal › Article › peer-review

75 Citations (Scopus)

Abstract

We have discovered homologous series of iron pnictide superconductors (Fe₂As₂) [Ca_n+1 (Sc,Ti)_nO _y] (n=3,4,5). These compounds have extremely thick blocking layers up to quintuple perovskite layers sandwiched by the Fe₂As₂ layers. These samples exhibited bulk superconductivity with relatively high T_c up to 42 K. The relationship between T_c and the iron-plane interlayer distance suggested that T_c of the iron based superconductor is basically determined by the local structure of Fe₂ As₂ layer.

Original language	English
Article number	072506
Journal	Applied Physics Letters
Volume	97
Issue number	7
DOIs	https://doi.org/10.1063/1.3478850
Publication status	Published - 2010 Aug 16
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "We have discovered homologous series of iron pnictide superconductors (Fe2As2) [Can+1 (Sc,Ti)nO y] (n=3,4,5). These compounds have extremely thick blocking layers up to quintuple perovskite layers sandwiched by the Fe2As2 layers. These samples exhibited bulk superconductivity with relatively high Tc up to 42 K. The relationship between Tc and the iron-plane interlayer distance suggested that Tc of the iron based superconductor is basically determined by the local structure of Fe2 As2 layer.",

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AU - Ogino, Hiraku

AU - Sato, Shinya

AU - Kishio, Kohji

AU - Shimoyama, Jun Ichi

AU - Tohei, Tetsuya

AU - Ikuhara, Yuichi

PY - 2010/8/16

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N2 - We have discovered homologous series of iron pnictide superconductors (Fe2As2) [Can+1 (Sc,Ti)nO y] (n=3,4,5). These compounds have extremely thick blocking layers up to quintuple perovskite layers sandwiched by the Fe2As2 layers. These samples exhibited bulk superconductivity with relatively high Tc up to 42 K. The relationship between Tc and the iron-plane interlayer distance suggested that Tc of the iron based superconductor is basically determined by the local structure of Fe2 As2 layer.

AB - We have discovered homologous series of iron pnictide superconductors (Fe2As2) [Can+1 (Sc,Ti)nO y] (n=3,4,5). These compounds have extremely thick blocking layers up to quintuple perovskite layers sandwiched by the Fe2As2 layers. These samples exhibited bulk superconductivity with relatively high Tc up to 42 K. The relationship between Tc and the iron-plane interlayer distance suggested that Tc of the iron based superconductor is basically determined by the local structure of Fe2 As2 layer.

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Homologous series of iron pnictide oxide superconductors (Fe ₂As₂) [Ca_n+1 (Sc,Ti)_nO_y] (n=3,4,5) with extremely thick blocking layers

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