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Fe(Se,Te) from melting routes: Insight on phase separation

TitleFe(Se,Te) from melting routes: Insight on phase separation
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2019
AuthorsMasi, A., Alvani C., Augieri A., Bellusci M., Celentano G., De Marzi G., Fabbri F., C. Zignani Fiamozzi, La Barbera A., Padella F., Pentimalli Marzia, Silva E., Vannozzi A., and Varsano F.
JournalIEEE Transactions on Applied Superconductivity
KeywordsAnnealing treatments, High temperature annealing treatments, Iron, Melting, Microscopic examination, Morphological evolution, Organic superconducting materials, Phase separation, Selenium compounds, Super conducting phasis, Superconducting materials growth, Superconducting materials measurements, Superconducting properties, Tellurium compounds, Tetragonal matrix

This study is focused on the phase separation phenomena in Fe(Se,Te) materials. In particular, it investigates the effect of a high temperature and long time annealing treatment on morphostructural and superconducting properties of bulk samples. The synthesis of Fe(Se,Te) compounds was carried out through a melting route, and the materials were characterized in their morphostructural and magnetic properties. The obtained compounds possess a high degree of inhomogeneity due to dendritic precipitates of secondary phases in a superconducting tetragonal matrix. The high temperature annealing treatment induces a morphological evolution of the material and leads to the structuration of two distinct superconducting phases. © 2002-2011 IEEE.


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Citation KeyMasi2019