Neutron diffraction studies of Pr/sub 2/C/sub 3/, Nd/sub 2/C/sub 3/, and Dy/sub 2/C/sub 3/ at 300 to 1. 6/sup 0/K

Journal Article · Fri Sep 01 00:00:00 EDT 1978 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(78)90132-9· OSTI ID:6214307

Atoji, M

Neutron diffraction measurements have shown that the body-centered cubic Pr/sub 2/C/sub 3/, Nd/sub 2/C/sub 3/, and Cy/sub 2/C/sub 3/ become antiferromagnetic below 8, 24, and 22/sup 0/K, respectively, all exhibiting the Tb/sub 2/C/sub 3/-type magnetic structure. In the uniaxial moment model having two antiferromagnetic and two paramagnetic body diagonals, the saturation order moments per metal atom are 1.3, 3.0, and 9.5 Bohr magnetons, respectively, being 41, 92, and 95% of the respective free ion values. Pr/sub 2/C/sub 3/ shows an exceptionally large crystal field effect. The antiferromagnetic alignment is uninfluenced by the applied field of up to 21 kOe. The crystal structure data at 300 to 1.6/sup 0/K are also given. A brief review is presented on the physical properties of the rare earth sesquicarbides.

• Research Organization: Argonne National Lab., IL
• OSTI ID: 6214307
• Journal Information: J. Solid State Chem.; (United States), Vol. 26:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
DYSPROSIUM CARBIDES
ANTIFERROMAGNETISM
CRYSTAL STRUCTURE
NEODYMIUM CARBIDES
PRASEODYMIUM CARBIDES
CRYSTAL LATTICES
LOW TEMPERATURE
NEUTRON DIFFRACTION
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
CARBIDES
CARBON COMPOUNDS
COHERENT SCATTERING
DIFFRACTION
DYSPROSIUM COMPOUNDS
MAGNETISM
NEODYMIUM COMPOUNDS
PRASEODYMIUM COMPOUNDS
RARE EARTH COMPOUNDS
SCATTERING
360204* - Ceramics
Cermets
& Refractories- Physical Properties
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies