Magnetic properties and structures and equiatomic rare earth-platinum compounds RPt (R = Gd, Tb, Dy, Ho, Er, Tm)

Journal Article · Thu Jan 31 23:00:00 EST 1980 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(80)90021-3· OSTI ID:6862684

Castets, A ^[1]; Gignoux, D; Gomez-Sal, J C

---

1. Laboratoire Louis Neel, Grenoble Cedex, France

The magnetic properties and structures of RPt compounds (R = Gd, Tb, Dy, Ho, Er, and Tm) are presented. Below their Curie temperature mu the compounds exhibit ferromagnetic behavior. In GdPt, the spontaneous magnetization at 4.2/sup 0/K (6.7 ..mu../sub B//Gd) and the small superimposed susceptibility suggest that the gadolinium moments are parallel and the exchange interactions are positive. In the three types of noncollinear magnetic structures observed in the other compounds the rare earth atoms are divided into two sublattices with different magnetization directions. They give rise to a ferromagnetic component associated with an antiferromagnetic component. These structures, which are analyzed in terms of crystal field effects, result from a competition between a magnetocrystalline anisotropy and positive exchange interactions of Heisenberg type.

• OSTI ID: 6862684
• Journal Information: J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 31:2; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CRYSTAL STRUCTURE
DATA
DYSPROSIUM COMPOUNDS
ERBIUM COMPOUNDS
EXPERIMENTAL DATA
GADOLINIUM COMPOUNDS
HOLMIUM COMPOUNDS
INFORMATION
MAGNETIC PROPERTIES
NUMERICAL DATA
PHYSICAL PROPERTIES
PLATINUM COMPOUNDS
RARE EARTH COMPOUNDS
TERBIUM COMPOUNDS
THULIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS