Magnetic and crystallographic properties of the permanent magnet systems (R/sub 1-//sub x/Sc/sub x/)/sub 2/Fe/sub 14/B (R = Y, Nd, Dy, Er, Lu)

Journal Article · Tue Nov 15 04:00:00 EST 1988 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.342331· OSTI ID:6729738

Chen, S K; Duh, J G; Ku, H C

Magnetic and crystallographic measurements have been made on the rare-earth iron boride systems (R/sub 1-//sub x/Sc/sub x/)/sub 2/Fe/sub 14/B (R = Y, Nd, Dy, Er, Lu). Powder x-ray diffraction data indicate that a Nd/sub 2/Fe/sub 14/B-type single phase persists up to x = 0.2 with lattice parameters decreasing slightly due to the smaller metallic radius of the Sc/sup 3 +/ ions. The variation of magnetic moments per formula unit with nonmagnetic Sc substitution depends on the smaller Sc size and the nature of the magnetic alignment of the rare-earth sublattice (nonmagnetic in Y and Lu, ferromagnetic axial in Nd, ferromagnetic planar in Er, and antiferromagnetic axial in Dy) with respect to the iron sublattice. The Curie temperature T/sub C/ decreases monotonically with progressive addition of Sc atoms.

• Research Organization: Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan 30043, Republic of China
• OSTI ID: 6729738
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 64:10; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
360104 -- Metals & Alloys-- Physical Properties
ALLOYS
BORIDES
BORON ALLOYS
BORON COMPOUNDS
CRYSTAL STRUCTURE
CURIE POINT
DYSPROSIUM ALLOYS
ERBIUM ALLOYS
IRON ALLOYS
IRON BORIDES
IRON COMPOUNDS
LUTETIUM ALLOYS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
NEODYMIUM ALLOYS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
SCANDIUM ALLOYS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM ALLOYS