Jahn-Teller-effect formation of the non-magnetic ground state for the d8 system
Strongly Correlated Electrons
2007-05-23 v1
Abstract
It is shown that the d8 electron system occurring in the Ni2+ ion can have the non-magnetic ground state in the atomic scale formed by the Jahn-Teller effect. The tetragonal/trigonal off-cubic lattice distortion for the octahedral site causes the splitting of the triplet 3A2g into a singlet-doublet structure with the non-magnetic singlet lying lower provided the intra-atomic spin-orbit coupling is taken into account.
Cite
@article{arxiv.cond-mat/0006196,
title = {Jahn-Teller-effect formation of the non-magnetic ground state for the d8 system},
author = {Z. Ropka and R. J. Radwanski},
journal= {arXiv preprint arXiv:cond-mat/0006196},
year = {2007}
}
Comments
8 pages in RevTex, 2 figure in EPS