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Start Over Author "Jianjun Ying" Publisher elsevier bv
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2. Superconductivity in Ba1−xSm x FFeAs and Eu1−xSm x FFeAs systems

Author

Jianjun Ying, H. S. Chen, Xianhui Chen, XiangFeng Wang, Min Zhong, YaLi Xie, Gang Wu, QiuJu Li, Ronghua Liu, Tao Wu, BingCai Shi, and YaJun Yan

Subjects
Superconductivity, Alkaline earth metal, Multidisciplinary, Condensed matter physics, Rare earth, Arsenide, Metal, chemistry.chemical_compound, Crystallography, chemistry, Electrical resistivity and conductivity, visual_art, visual_art.visual_art_medium, Spin density wave
Abstract

We synthesized the samples Ba1−x Sm x FFeAs and Eu1−x Sm x FFeAs with ZrCuSiAs-type structure. These samples were characterized by resistivity and susceptibility. It is found that the substitution of rare earth metal for alkaline earth metal in the two systems suppresses the anomaly in resistivity and induces superconductivity. Superconductivity at 54 K in nominal composition Ba0.5Sm0.5FFeAs and at 51 K for Eu0.5Sm0.5FFeAs is realized, indicating that the superconducting transition temperatures in the iron arsenide fluorides is the same as that in oxypnictides with the same structure.

Published
2009
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