Magnetic and structural properties of Nd/sub 2/Fe/sub 14/B permanent-magnet films and multilayers with Fe and Ag

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

DOI:https://doi.org/10.1063/1.342244· OSTI ID:6743820

Aylesworth, K D; Zhao, Z R; Sellmyer, D J; Hadjipanayis, G C

The effects of sputtering conditions on the structure and magnetic properties of Nd/sub 2/(Fe/sub 0.9/Co/sub 0.1/)/sub 14/B films and multilayers are reported. The samples were sputtered onto temperature-controlled mica and Ta substrates, at temperatures between 20 and 620 /sup 0/C. X-ray diffraction results indicate that films deposited directly onto 500--600 /sup 0/C substrates with Fe buffer layers are nearly single-phase materials with the c axis of the grains largely perpendicular to the film plane. Room-temperature magnetization measurements to 17.4 kOe indicate that these films have strong perpendicular anisotropy with coercivities in excess of 10 kOe and magnetizations greater than 100 emu/g. Results for Nd/sub 2/ (Fe/sub 0.9/ Co/sub 0.1/ )/sub 14/ B/Fe multilayers show that films can be produced with either in-plane or perpendicular anisotropy depending on the layer thicknesses. The Fe multilayers were found to have coercivities similar to those for the single layer films. Multilayers made with Ag were found to have significant interdiffusion and secondary phases.

• Research Organization: Behlen Laboratory of Physics, University of Nebraska, Lincoln, Nebraska 68588-0111
• OSTI ID: 6743820
• 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
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
BORIDES
BORON COMPOUNDS
COERCIVE FORCE
COHERENT SCATTERING
CRYSTAL STRUCTURE
DIFFRACTION
DIFFUSION
DIMENSIONS
ELEMENTS
FILMS
HIGH TEMPERATURE
IRON
IRON BORIDES
IRON COMPOUNDS
LAYERS
MAGNETIC PROPERTIES
MAGNETIZATION
MAGNETS
MEDIUM TEMPERATURE
METALS
MICA
NEODYMIUM BORIDES
NEODYMIUM COMPOUNDS
PERMANENT MAGNETS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SCATTERING
SILVER
SORPTIVE PROPERTIES
SPUTTERING
SURFACE PROPERTIES
TANTALUM
THICKNESS
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
X-RAY DIFFRACTION