Abstract
The Fe1 + ySexTe1 – x single crystals grown by the KCl flux and Bridgman methods have been compared using the same investigation techniques. It is shown that the KCl flux growth yields high-quality Fe1 + ySexTe1 – x superconducting single crystals. The oxygen diffusion coefficient in Fe1 + ySexTe1 – x has been estimated. During the Bridgman crystal growth, a stable nonsuperconducting phase can be formed, which suggests a need for refining the phase diagram of this compound.
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ACKNOWLEDGMENTS
We are grateful to S.I. Vedeneev for the formulation of the problem and useful discussions and to N.P. Shabanova for the help in growing crystals.
Funding
The study was supported by the Program “Urgent Problems of Low-Temperature Physics” of the Russian Academy of Sciences.
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Translated by E. Bondareva
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Golubkov, M.V., Gorina, J.I., Rodin, V.V. et al. Comparative Analysis of the Methods for Obtaining Superconducting Fe1 + ySexTe1 – x Single Crystals. Crystallogr. Rep. 64, 991–995 (2019). https://doi.org/10.1134/S1063774519060051
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DOI: https://doi.org/10.1134/S1063774519060051