Homologous series of iron pnictide oxide superconductors (Fe2As2)x[Can+1(Sc,Ti)nOy] (n=3,4,5) with extremely thick blocking layers

被引：68

作者：

Ogino, Hiraku ^{[1
,2
]}

Sato, Shinya ^{[1
,2
]}

Kishio, Kohji ^{[1
,2
]}

Shimoyama, Jun-ichi ^{[1
,2
]}

Tohei, Tetsuya ^{[3
]}

Ikuhara, Yuichi ^{[3
]}

机构：

[1] Univ Tokyo, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan

[2] JST TRIP, Chiyoda Ku, Sanban, Tokyo 1020075, Japan

[3] Univ Tokyo, Inst Engn Innovat, Bunkyo Ku, Tokyo 1138656, Japan

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 07期

关键词：

calcium compounds; crystal structure; high-temperature superconductors; iron compounds; multilayers; superconducting transition temperature;

D O I：

10.1063/1.3478850

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have discovered homologous series of iron pnictide superconductors (Fe2As2)[Can+1(Sc,Ti)(n)O-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 Fe2As2 layer. (C) 2010 American Institute of Physics. [doi:10.1063/1.3478850]

引用

页数：3

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