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Superconductivity at 44 K in K intercalated FeSe system with excess Fe

We report here that a new superconducting phase with much higher Tc has been found in K intercalated FeSe compound with excess Fe. We successfully grew crystals by precisely controlling the starting amount of Fe. Besides the superconducting (SC) transition at ~30 K, we observed a sharp drop in resis...

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Detalles Bibliográficos
Autores principales: Zhang, An-min, Xia, Tian-long, Liu, Kai, Tong, Wei, Yang, Zhao-rong, Zhang, Qing-ming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3564023/
https://www.ncbi.nlm.nih.gov/pubmed/23386972
http://dx.doi.org/10.1038/srep01216