Superconductivity and magnetism in R4Be33Pt16 (R= Y, La-Nd, Sm-Lu): A family of 
crystallographically complex noncentrosymmetric compounds

Svanidze, E.; Amon, A.; Nicklas, M.; Prots, Yu.; Juckel, M.; Rosner, H.; Burkhardt, U.; Avdeev, M.; Grin, Yu.; Leithe-Jasper, A.

doi:10.1103/PhysRevMaterials.5.074801

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Superconductivity and magnetism in R₄Be₃₃Pt₁₆ (R= Y, La-Nd, Sm-Lu): A family of crystallographically complex noncentrosymmetric compounds

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Svanidze, E.
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons214276

Amon, A.
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126782

Nicklas, M.
Michael Nicklas, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126806

Prots, Yu.
Yuri Prots, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons248163

Juckel, M.
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126819

Rosner, H.
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126556

Burkhardt, U.
Ulrich Burkhardt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126626

Grin, Yu.
Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126726

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

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Citation

Svanidze, E., Amon, A., Nicklas, M., Prots, Y., Juckel, M., Rosner, H., et al. (2021). Superconductivity and magnetism in R₄Be₃₃Pt₁₆ (R= Y, La-Nd, Sm-Lu): A family of crystallographically complex noncentrosymmetric compounds. Physical Review Materials, 074801, pp. 1-11. doi:10.1103/PhysRevMaterials.5.074801.

Cite as: https://hdl.handle.net/21.11116/0000-0009-20F5-E

Abstract

Crystallographically complex compounds often possess peculiar physical properties, the evolution of which can be tracked by changing one of the constituent elements at a time. We report the discovery and synthesis of isotypic R4Be33Pt16 (R = Y, La-Nd, Sm-Lu) compounds, which crystallize with the noncentrosymmetric cubic space group I4¯3d. The lattice parameters vary from a=13.6682(4)Å for R = La to a=13.4366(3)Å for R = Lu. R4Be33Pt16 phases exhibit a wide range of ground states. R = Y, La, and Lu analogs display superconductivity. Their calculated electronic structures show nonzero density of states at the Fermi level, with the value of the Sommerfeld coefficient consistent with those obtained experimentally. The rest of the R4Be33Pt16 compounds exhibit magnetic ground states with ordering temperatures ranging from Tmag=0.4 K (R = Yb) to Tmag=40 K (R = Pr). The diversity of physical properties of R4Be33Pt16 compounds can likely be attributed to the nature of the individual rare-earth elements, structural noncentrosymmetry, the large number of atoms per unit cell (212), as well as the complex multicenter interactions within the Be-Pt framework. © 2021 authors. Published by the American Physical Society.