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.

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

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.;Vannozzi, A.;della Corte, A.
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.
Recrystallization; Single crystal growth; Growth from molten salts; Chalcogenides; Superconducting materials
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12079/51143
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