Fe(Se,Te) system crystallized in molten chlorides flux: The obtained materials and their characterization

Authors :: C. Fiamozzi Zignani
Andrea Masi
Carlo Alvani
Enrico Silva
Franco Padella
A. La Barbera
Francesco Rizzo
Angelo Vannozzi
Alessandro Rufoloni
A. Angrisani Armenio
Andrea Augieri
F. L. Fabbri
G. Celentano
G. De Marzi
A. della Corte
Masi, A.
Alvani, C.
Angrisani Armenio, A.
Augieri, A.
Celentano, G.
De Marzi, G.
Fabbri, F.
Fiamozzi Zignani, C.
La Barbera, A.
Padella, F.
Rizzo, F.
Rufoloni, A.
Silva, E.
Vannozzi, A.
della Corte, A.
Publication Year :: 2019
Abstract: In this work we report the crystallization of iron chalcogenides compounds starting from a Fe(Se0.5Te0.5) solid pellet. The synthesis process is carried out at 675 degrees C using a molten chloride salts mixture and permitted to obtain well defined and easily separated hexagonal and tetragonal crystals, characterized by Fe-3(Se0.43Te0.57)(4) and Fe1.02Se0.41Te0.59 compositions respectively. The obtained tetragonal compound exhibits superconductivity at 14 K with critical current density of similar to 10(5) A/cm(2) at 5 K.

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