Crystal chemistry and structural design of iron-based superconductors 被引量：2

Crystal chemistry and structural design of iron-based superconductors

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摘要 The second class of high-temperature superconductors （HTSCs）, iron-based pnictides and chalcogenides, necessarily contain Fe2X2 （＂X＂ refers to a pnictogen or a chalcogen element） layers, just like the first class of HTSCs which possess the essential CuO2 sheets. So far, dozens of iron-based HTSCs, classified into nine groups, have been discovered. In this article, the crystal-chemistry aspects of the known iron-based superconductors are reviewed and summarized by employing ＂hard and soft acids and bases （HSAB）＂ concept. Based on these understandings, we propose an alternative route to exploring new iron-based superconductors via rational structural design. The second class of high-temperature superconductors （HTSCs）, iron-based pnictides and chalcogenides, necessarily contain Fe2X2 （＂X＂ refers to a pnictogen or a chalcogen element） layers, just like the first class of HTSCs which possess the essential CuO2 sheets. So far, dozens of iron-based HTSCs, classified into nine groups, have been discovered. In this article, the crystal-chemistry aspects of the known iron-based superconductors are reviewed and summarized by employing ＂hard and soft acids and bases （HSAB）＂ concept. Based on these understandings, we propose an alternative route to exploring new iron-based superconductors via rational structural design.

作者蒋好孙云蕾许祝安曹光旱

机构地区 Department of Physics

出处《Chinese Physics B》 SCIE EI CAS CSCD 2013年第8期135-145,共11页 中国物理B（英文版）

基金 supported by the National Natural Science Foundation of China(Grant Nos.90922002 and 11190023) the Fundamental Research Funds for the Central Universities of Ministry of Education of China(Grant No.2013FZA3003)

关键词 iron-based superconductors crystal chemistry structural design iron-based superconductors, crystal chemistry, structural design

分类号 TM26 [一般工业技术—材料科学与工程]

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