Sc3Ir4Si13+x and Sc4Ir7Ge6 – the perovskite-related crystal structures

The crystal structure of Sc Ir Si (  = 0.22) [space group ,  = 8.4651(1) Å] is found to be a new disordered variant of the primitive cubic Yb Rh Sn Remeika prototype. The silicide is stable in the narrow temperature range of 1283–1397 °C and reveals metallic properties. The crystal structure of Sc I...

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Bibliographic Details
Published inZeitschrift für Kristallographie. Crystalline materials Vol. 236; no. 11; pp. 313 - 323
Main Authors Levytskyi, Volodymyr, Wagler, Jörg, Hennig, Christoph, Feig, Manuel, Weigel, Tina, Leithe-Jasper, Andreas, Meyer, Dirk C., Gumeniuk, Roman
Format Journal Article
LanguageEnglish
Published De Gruyter 01.12.2021
Subjects
crystal structure
electronic structure
magnetic susceptibility
single crystal
synchrotron studies
X-ray diffraction
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Summary:The crystal structure of Sc Ir Si (  = 0.22) [space group ,  = 8.4651(1) Å] is found to be a new disordered variant of the primitive cubic Yb Rh Sn Remeika prototype. The silicide is stable in the narrow temperature range of 1283–1397 °C and reveals metallic properties. The crystal structure of Sc Ir Ge [U Re Si type, space group ,  = 8.1397(8) Å] is refined for the first time. The electronic band structure calculations reveal that the properties of this germanide can be explained based on the free electron gas model. Both compounds reveal close structural relationships to the simple perovskite structure.
ISSN:2194-4946
2196-7105
DOI:10.1515/zkri-2021-2055