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szseiya

木虫 (小有名气)

[求助] 关于氧气分子的磁矩 已有2人参与

请问氧气分子的磁矩有多大,和温度有关不,在梯度磁场下的磁矩方向有几种?
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pippi6

铁杆木虫 (著名写手)

工程和科学数值计算咨询

【答案】应助回帖

感谢参与,应助指数 +1
2楼2014-12-10 15:56:42
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szseiya

木虫 (小有名气)

引用回帖:
2楼: Originally posted by pippi6 at 2014-12-10 15:56:42
查了一下百度
http://zhidao.baidu.com/link?url=adGecNRNuhaoISa_wmJyprxKsbIS7SIezeewOKfyCpyEUSX2OiQQPfMnA5mr1ePpQVf_LcCaHqJHHI5PKnkDq_

这个我也看到了,但是不对,氧气具有顺磁性的。。有磁矩的
3楼2014-12-12 10:02:46
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KIF17

铁虫 (小有名气)

【答案】应助回帖

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szseiya: 金币+100, ★★★很有帮助 2014-12-15 10:47:03
Maybe this one:

' Molecular oxygen, although homonuclear, hence with zero electric dipole moment, has a triplet electronic ground state, with two electrons paired with parallel spins. The resulting electronic spin couples efficiently with the magnetic fields caused by the end-over-end rotation of the molecule, yielding a ``large'' magnetic dipole moment, $\mu^{mag}$= 10^-20 emu. The magnetic dipole transitions of O2 have intrinsic strengths $\sim10^{2-3}$ times weaker than the water transitions. O2, however, is 102-3 times more abundant than H2O, so that the atmospheric lines of the two species have comparable intensities. '

http://www.iram.fr/IRAMFR/IS/IS2002/html_1/node90.html
4楼2014-12-12 22:40:02
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