Issue |
Europhys. Lett.
Volume 41, Number 4, february II 1998
|
|
---|---|---|
Page(s) | 377 - 382 | |
Section | Atomic, molecular and optical physics | |
DOI | https://doi.org/10.1209/epl/i1998-00160-3 | |
Published online | 01 September 2002 |
Pauli principle and hyperfine tensors in molecules with identical nuclei
Laboratoire de Physique Théorique de la Matière Condensée, 7020,
Université Paris 7, Denis Diderot,
2 place Jussieu, 75251 Paris cedex 05, France
Received:
25
September
1997
Accepted:
17
December
1997
The theoretical expressions of the hyperfine tensors must be modified, for
molecu les with identical nuclei in equivalent
positions. We illustrate the procedure by considering molecules with
half-integer identical nuclear spins in symmetry. Application of
the Pauli
Principle to these molecular spin systems reduces the degeneracy of the
molecular excited states of electronic symmetry E. Consequently, the part
of the
hyperfine tensors arising from these E states (which contributes to the
tensors transverse components) should be multiplied by a reduction factor
of 1/4.
PACS: 31.30.Gs – Hyperfine interactions and isotope effects / 33.20.Wr – Vibronic, rovibronic, and rotation electron-spin interactions
© EDP Sciences, 1998
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