The magnetic properties of annealed graphite-coated Ni and Co nanocrystals
Magnetic studies of graphite-coated nanocrystals of nickel and cobalt (5-50 nm) synthesized in a special fullerene are chamber are reported. Magnetization measurements as a function of temperature in the range 20-900/spl deg/C indicate the ferromagnetic nature of the nanocrystals. Upon heating and r...
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Published in | IEEE transactions on magnetics Vol. 34; no. 4; pp. 982 - 984 |
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Main Authors | , , , , , , |
Format | Journal Article Conference Proceeding |
Language | English |
Published |
New York, NY
IEEE
01.07.1998
Institute of Electrical and Electronics Engineers |
Subjects | |
Online Access | Get full text |
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Summary: | Magnetic studies of graphite-coated nanocrystals of nickel and cobalt (5-50 nm) synthesized in a special fullerene are chamber are reported. Magnetization measurements as a function of temperature in the range 20-900/spl deg/C indicate the ferromagnetic nature of the nanocrystals. Upon heating and recooling of the nanocrystals a larger magnetization was measured, The dependence of room temperature M/sub s/, M/sub r/, and H/sub c/ of the nanocrystals on annealing temperature is reported. The data are consistent with increase in size of single domain particles, or transition of the nanocrystals from single domain to multi-domain due to particle size growth in the annealing process. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0018-9464 1941-0069 |
DOI: | 10.1109/20.706331 |