作者jackypig (找我下象棋吧)
看板Physics
標題[請益] about magnetic dipole
時間Tue May 15 10:50:58 2007
The following is a context I've read in some electromagnetics reference book:
"According to a simplified atomic model, the electrons associated with a
particulatr nucleus orbit around the nucleus in circular paths while spinning
about themselves. In addition, the nucleus itself has a spin motion associated
with it. Since the movement of charge constitutes a current, these orbital and
spin motions are equivalent to current loops of atmoic dimensions. Thus, each
atom can be characterized by a superposition of magnetic dipole moments
corresponding to the electron orbital motions, electron spin motions, and the
nuclear spin."
I can understand that orbital motion of electron could be taken as a current
loop so that contribute to the magnetic dipole moment.
But why could the spin motions of electron and nucleus itself also have the
effects on the magnetic dipole moment?
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1F：推 mathfeel:imagine a charged sphere spinning, there is an 05/15 16:31
2F：→ mathfeel:associated magnetic moment. 05/15 16:32
3F：→ mathfeel:In the case of electron/proton spin, it's really an 05/15 16:32
4F：→ mathfeel:relativistic effect. 05/15 16:33
5F：推 eddietu:the induction of magnetic dipole moment is from the 05/15 17:51
6F：→ eddietu:self spin of electron 05/15 17:52
7F：推 HLiNaKRbCsFr:Regarding to the last paragraph of your article, 05/15 23:08
8F：→ HLiNaKRbCsFr:you might consult the relativistic quantum 05/15 23:12
9F：→ HLiNaKRbCsFr:mechanics developed by Paul Dirac. 05/15 23:14
10F：推 jackypig:relativistic quantum mechanics? for spin of nucleus? 05/16 09:14