Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
85 (1999), S. 4322-4324
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Elemental rare-earths R (Gd, Dy, Tb) are prepared in layer and particle form to look at the effects of geometry (layers or particles) and size (layer thickness or particle diameter) on their magnetism. All of the rare-earth systems show a maximum in coercivity (measured at 4.5 K) at about 10 nm (average particle diameter or layer thickness). Magnetic ordering temperature is reduced significantly compared to the bulk when size is reduced below 10 nm for both the layer and the particle geometry. Geometry has a significant effect on the maximum coercivity with particles tending to have larger coercivity than layers. © 1999 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.370356
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