Exchange coupling in crystalline/amorphous Nd-Fe-B nanoassemblies

Journal Article · Mon May 01 00:00:00 EDT 2000 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.372626· OSTI ID:20216264

Shield, J E ^[1]; Kappes, B B ^[1]; Crew, D C ^[2]; Branagan, D J ^[3]

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1. Department of Materials Science and Engineering, University of Utah, Salt Lake City, Utah 84112 (United States)
2. Department of Applied Science, Brookhaven National Laboratory, Upton, New York 11973 (United States)
3. Idaho National Engineering and Environmental Laboratory, Idaho Falls, Idaho 83415 (United States)

The demagnetization behavior of nanoassembled crystalline/amorphous microstructures was investigated. The microstructures consisted of isolated Nd{sub 2}Fe{sub 14}B crystallites surrounded by regions of remaining amorphous phase. The hard magnetic crystallites interacted with the surrounding amorphous phase over a length scale of approximately 1.5-2 nm. As the extent of the amorphous phase decreased to less than this, interactions between hard magnetic grains were observed. (c) 2000 American Institute of Physics.

• OSTI ID: 20216264
• Journal Information: Journal of Applied Physics, Vol. 87, Issue 9; Other Information: PBD: 1 May 2000; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
NEODYMIUM ALLOYS
IRON ALLOYS
BORON ALLOYS
MICROSTRUCTURE
EXCHANGE INTERACTIONS
PERMANENT MAGNETS
MAGNETIZATION
IRREVERSIBLE PROCESSES
EXPERIMENTAL DATA