Hund's rule and strong spin-orbit interacion

  • #1
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Hi,
I have read that Hund's rules are valid for Atoms with low z.
Because the third Hund's rule is build of Russell-Saunders coupling.

Can I still use the first and second Hund's rule for heavy atoms and jj-coupling( for the third rule)?
Or how can I know the groundstate for an atom with large spin-orbit interaction?

Thank you
Abby
 

Answers and Replies

  • #2
TeethWhitener
Science Advisor
Gold Member
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Can I still use the first and second Hund's rule for heavy atoms and jj-coupling( for the third rule)?
I suppose you could, but it'll be meaningless, because ##\textbf{L}## and ##\textbf{S}## are not good quantum numbers in the presence of large spin-orbit coupling. You might take a look at the Wikipedia entry for term symbols:
https://en.m.wikipedia.org/wiki/Term_symbol
It has a good overview for how we determine term symbols for jj coupling.
 

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