Any possible ideas of potential configurational and orientional dynamics of paramagnetic compounds?

Hi, I have a rather general question (or maybe its rather silly question to
ask).  I would like to get some input and suggestions (hopefully you will
have some technical references to support your ideas).  I am interested
knowing off-hand what specific types of geometrical formations and
orientations of a magnetic particle (say magnetite or some other
paramagnetic derivative) would be required in order to maximize the local
field effects of an electromagnetic field and/or elicit the greatest current
induction within some unit of space.

I'm working under the hypothesis that the geometrical organization as well
orientation within three dimensional space will be a benefical factor in
order to maximize the effects that i mentioned above.  I am just interested
in knowing off hand of some configural spatial organizations (that occur in
nature) that might be capable of enhancing the responsiveness within
piezoelectrical materials (or just magnetic crystals). So any suggestions
will be great.  Thanks.

NMF