Crystal Structure and Ferromagnetism of the CeFe₉Si₄ Intermetallic Compound.

ABSTRACT: We have determined the crystal structure and the magnetic state of the CeFe₉Si₄ intermetallic compound. Our revised structural model (fully ordered tetragonal unit cell, I4/mcm) agrees with the previous literature report, except for some minor quantitative differences. Magnetically, the CeFe₉Si₄ undergoes a ferromagnetic transition at the temperature T_C ≈ 94 K. Ferromagnetism in the combined Ce-Fe spin system is a result of interplay between the localized magnetism of the Ce sublattice and the Fe band (itinerant) magnetism. Ferromagnetic ordering obeys the rather general rule that the exchange spin coupling between atoms possessing more than half-full d shells with atoms possessing less than half-full d shells is a

SUBMITTER: Kozelj P 

PROVIDER: S-EPMC10114074 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature