🚀 go-pugleaf

Hey ho,
 
(Pre-disclaimer -- I am a physics moron.  I am posting this from memory
for a friend of mine -- any scientific errors are mine and the fault of an
MBA education (but ask me about neural nets, Boltzmann machines, or
simulated annealing!))

I need (for a friend/associate) to find someone experienced in materials
exhibiting a high degree of "Hall effect" -- something or other to do with
high free-electron mobility or other.  As best I get it, such materials do
something funky in a changing-polarity electron field, like suddenly flip
polarization or magnetization, or whatnot.  Anyway, he has some bizzaro
theoretical application where he's got a disk of this stuff in a field,
rotating, and the magnetization suddenly flip-flops -- switching or something.
 
Vague enough?  Well, if you have the information he needs, you'd
understand enough of that babble to know what I'm garbling.  Please reply
via e-mail to: asc7556@u.cc.utah.edu if you have any information on
materials exhibiting this property STRONGLY, which can be shaped in a
reasonably economically feasible way into disks of about 4-6" diameter and
maybe 1-2" thicknesses....
 
Or have any clue about something peripherally related! ;-)
 
Thanks for putting up with my amazing ignorance...
 
Andrew