1. Negative g Factors, Berry Phases, and Magnetic Properties of Complexes.
- Author
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Chibotaru, L. F. and Ungur, L.
- Subjects
- *
ZEEMAN effect , *SPLITTING extrapolation method , *GEOMETRIC quantum phases , *MAGNETIC fields , *COMPLEX compounds - Abstract
It is shown that the sign of the product of three Zeeman splitting factors corresponding to the main magnetic axes defines the sign of the Berry phase of a (pseudo) spin in an applied magneic field. Ab initio calculations show that gXgYgZ<0 is often the case for lanthanide and transition metal complexes, while we prove that it is never achieved in S complexes with dominant second-order magnetic anisotropy. In the case of polynuclear compounds, it is argued that the signs of individual gi, i=X, Y, Z, on each metal site can be extracted from experiment. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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