Possible high temperature superconductivity in a Ti-doped A–Sc–Fe–As–O (A = Ca, Sr) system
Possible high temperature superconductivity in a Ti-doped A–Sc–Fe–As–O (A = Ca, Sr) system
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DOI：
10.1088/0953-2048/22/7/072001
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发表时间：
2009-03
影响因子：
3.6
通讯作者：
Genfu Chen;Genfu Chen;T. L. Xia;Hui Yang;Jingwei Li;P. Zheng;J. Luo;Ning Wang
中科院分区：
文献类型：
--
作者：
Genfu Chen;Genfu Chen;T. L. Xia;Hui Yang;Jingwei Li;P. Zheng;J. Luo;Ning Wang
本文系统地研究了Sr2ScFeAsO3、Ca2ScFeAsO3和Sr3Sc2Fe2As2O5中Ti4+部分取代Sc~(3+)对其电学性质的影响。高水平的掺杂导致载流子浓度增加，并导致超导电性的出现，T_c最高可达45K。
We report a systematic study on the effect of partial substitution of Sc3+ by Ti4+ in Sr2ScFeAsO3, Ca2ScFeAsO3 and Sr3Sc2Fe2As2O5 on their electrical properties. High levels of doping result in an increased carrier concentration and lead to the appearance of superconductivity with the onset of Tc up to 45 K.