Equiatomic cerium intermetallics CeXX' with two p elements

Rainer Pöttgen (1) , Bernard Chevalier (2)

1 Institut für Anorganische und Analytische Chemie
2 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

The equiatomic CeXX′ phases (X and X′ = elements of the 3rd, 4th, or 5th main group) extend the large series of CeTX intermetallics (T = electron-rich transition metal). These phases crystallize with simple structure types, i.e. ZrNiAl, TiNiSi, CeScSi, α-ThSi2, AlB2, and GdSi2. In contrast to the CeTX intermetallics one observes pronounced solid solutions for the CeXX′ phases. The main influence on the magnetic ground states results from the absence of d electrons. All known CeXX′ phases show exclusively trivalent cerium and antiferro- or ferromagnetic ordering at low temperatures. The crystal chemical details and some structure-property relationships are reviewed.

Mots clés: cerium compounds; crystal structure; intermetallics; magnetic properties; structure–property relationship

Domaines: Matériaux

Rainer Pöttgen, Bernard Chevalier. Equiatomic cerium intermetallics CeXX' with two p elements. Zeitschrift für Naturforschung, B: Chemical Sciences, 2015, 70 (10), pp.695-704. ⟨10.1515/znb-2015-0109⟩. ⟨hal-01220443⟩