In-situ growth of superconducting SmO(1−x)F(x)FeAs thin films by pulsed laser deposition

Oxypnictide thin film growth by pulsed laser deposition (PLD) is one of many insufficiently resolved issues in the research of iron-based superconductors. Here we report on the successful realization of superconducting SmO(1−x)F(x)FeAs oxypnictide thin film growth by in-situ PLD on CaF(2) (fluorite)...

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Detalles Bibliográficos
Autores principales: Haindl, Silvia, Hanzawa, Kota, Sato, Hikaru, Hiramatsu, Hidenori, Hosono, Hideo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5073333/
https://www.ncbi.nlm.nih.gov/pubmed/27767066
http://dx.doi.org/10.1038/srep35797
Descripción
Sumario:Oxypnictide thin film growth by pulsed laser deposition (PLD) is one of many insufficiently resolved issues in the research of iron-based superconductors. Here we report on the successful realization of superconducting SmO(1−x)F(x)FeAs oxypnictide thin film growth by in-situ PLD on CaF(2) (fluorite) substrates. CaF(2) acts as fluorine supplier by diffusion and thus enables superconducting oxypnictide thin film growth by PLD. Films are grown heteroepitaxially and characteristically have a broad resistive normal-to-superconducting transition. Best films have onset transition temperatures around 40 K. The proposed in-situ PLD film growth offers an alternative and cheap route for the fabrication of iron oxypnictides. PLD becomes now an additional option for iron oxypnictide synthesis.

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