Published November 1999 | Version v1
Journal article Metadata-only

Neutron diffraction studies of the magnetic structure of rare earth-iron-rich permanent magnetic alloys and the crystallographic structure of D(H)LAP

Creators

  • 1. China Inst. of Atomic Energy, Beijing (China)

Description

The crystallographic and magnetic structure of Ho2Fe9Ga8-x Alx (x 2,4) and PrFe10.5Mo1.5Nx compounds are studied by powder neutron diffraction. The atom fractional occupancies of Ga, Al, Mo and N and the atom magnetic moments of Ho, Fe and Pr are obtained by Rietveld analysis program. Fro Ho2Fe9Ga8-xAlx (x = 2,4), the magnetic moments of the phase with the x = 2,4 at 50 K and x = 2 at 300 K show uniaxial magnetic anisotropy. PrFe10.5Mo1.5Nx compound exhibits easy-axis magnetic anisotropy, but the anisotropy of PrFe10.5Mo1.5 is easy-planar. The crystal structure of D(H)LAP is determined by single crystal neutron diffraction. The results indicate that the deuterium occupy hydrogen positions except those hydrogen atoms bonded to carbon atoms

Additional details

Publishing Information

Journal Title
Atomic Energy Science and Technology
Journal Volume
33
Journal Issue
6
Journal Page Range
p. 515-520
ISSN
1000-6931

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
31022687
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ANISOTROPY; CARBON; CRYSTAL STRUCTURE; CRYSTALLOGRAPHY; DEUTERIUM; HYDROGEN; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; NEUTRON DIFFRACTION; OCCUPATION NUMBER; PERMANENT MAGNETS; R CODES; RARE EARTH ALLOYS
Descriptors DEC
ALLOYS; COHERENT SCATTERING; COMPUTER CODES; DIFFRACTION; ELEMENTS; EQUIPMENT; HYDROGEN ISOTOPES; ISOTOPES; LIGHT NUCLEI; MAGNETS; NONMETALS; NUCLEI; ODD-ODD NUCLEI; PHYSICAL PROPERTIES; SCATTERING; STABLE ISOTOPES