----- Original Message ----- From: "Stephen A. Lawrence" > Now, obviously the "orbit" model is incorrect. But it's QM that says > it's wrong, and presumably somewhere buried in QM there's also an > explanation of how the iron simulates current loops.
Yes, I have never bought into the popular visualiztions which are now showing up in QM applets on the netfor atoms - and domain visualiztions must suffer even more. And the really confusing thing is that, when you are talking QM you are talking percentages, but the percentage of actual alignment of electrons in a ferromagnetic material is suprisingly small. ... anyone care to venture a guess as to what that percentage is, say... in iron at one tesla ? Jones
