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Journal Article

Superconductivity of structurally disordered Y5Ir6Sn18

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Carrillo-Cabrera,  Wilder
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Akselrud,  Lev
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Leithe-Jasper,  Andreas
Andreas Leithe-Jasper, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Levytskyi, V., Carrillo-Cabrera, W., Akselrud, L., Kundys, B., Leithe-Jasper, A., & Gumeniuk, R. (2022). Superconductivity of structurally disordered Y5Ir6Sn18. Dalton Transactions, 10036-10046. doi:10.1039/d2dt01353c.


Cite as: https://hdl.handle.net/21.11116/0000-000A-B79B-9
Abstract
The structural and physical properties of Y5Ir6Sn18 grown from Sn-flux as large single crystals are studied. Y5Ir6Sn18 crystallizes with a unique structure [space group Fm3m, a = 13.7706(1) angstrom], which is characterized by a strong disorder. A transmission electron microscopy (TEM) study indicated that the structural model of Y5Ir6Sn18 obtained from X-ray diffraction methods is an average description of a complex intergrowth of domains with different structural arrangements. The studied stannide is a type-II superconductor with a critical temperature T-c = 2.1 K, a rather weak electron-phonon coupling and conventional s-wave BCS-like mechanisms. Performed theoretical electronic band structure calculations indicated the inconsistency of an idealized structural model earlier reported for Y5Ir6Sn18.