Dear colleagues,

in a future reseach project, we want to be occupied with electro-
magnetic drives in the nano meter range. For the implementation of
the function determining elements, layers and/or single elements will
above all be with it with magnetic characteristics of significant
importance.
My question: Up to which minimum geometrical size, magnetic qualities
still have ferromagnetic particle in particular?
In this case, permanent magnetic materials are from special interest
on the basis of NdFeB or SmCo.
Where are available for permanent magnetic nano particle?
Which further contacts to this are to be recommended?
Many thanks.

Yours faithfully   Dr. Detlef Riemer


Technicial University of Ilmenau
Department of Microsystems Technology, Mechatronics
and Mechanics
PF 100 565
D-98684 Ilmenau
Germany

E-Mail: detlef.riemer@maschinenbau.tu-ilmenau.de