NetNews Usenet Archive 1993 #1/NN_1993_1.iso/spool/sci/material/1076

Text File | 1993-01-05 | 1.8 KB | 43 lines

Newsgroups: sci.materials
Path: sparky!uunet!zaphod.mps.ohio-state.edu!caen!hellgate.utah.edu!fcom.cc.utah.edu!u.cc.utah.edu!asc7556
From: [e-mail] (Andrew Corradini/SBDC)
Subject: Hall-effect materials
Message-ID: <[e-mail]>
Summary: Needed: Ceramic/other material exhibiting high Hall-effect property.
Keywords: Electron mobility, ceramics, Hall-effect
Sender: [e-mail] (Andrew S. Corradini)
Organization: University of Utah Computer Center Student Mail Machine
Date: Tue, 5 Jan 93 04:49:37 GMT
Lines: 30

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: [e-mail] 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