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Phys Rev Lett. 2008 Jul 18;101(3):033003. doi: 10.1103/PhysRevLett.101.033003. Epub 2008 Jul 16.

Unique definition of the Zeeman-splitting g tensor of a Kramers doublet.

Physical review letters

L F Chibotaru, A Ceulemans, H Bolvin

Affiliations

  1. Afdeling Kwantumchemie en Fysicochemie, Katholieke Universiteit Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium. [email protected]

PMID: 18764251 DOI: 10.1103/PhysRevLett.101.033003

Abstract

It has been widely accepted in the past that the g tensor describing the Zeeman splitting of a Kramers doublet is not uniquely defined. Here we show that with two basic requirements, (i) the invariance of the Zeeman Hamiltonian under symmetry transformations and (ii) its continuous change with the variations of the parameters of the system (geometry and crystal field), a unique determination of the elements of the g tensor is achieved.

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