Orbital moment in CoO and in NiO

Details Orbital moment in CoO and in NiO Orbital moment in CoO and in NiO

2003-06-27

arxiv.org/abs/cond-mat/0306695v2

Physica B 345 (2004) 107-110

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages in tex+3 figs, submitted for PNSXM-03, Venice

Scientific paper

10.1016/j.physb.2003.11.034

The total, orbital and spin moment of the Co2+ ion in CoO has been calculated within the quasi-atomic approach with taking into account strong correlations, crystal-field interactions and the intra-atomic spin-orbit coupling. The orbital moment of 1.39 \mu B amounts at 0 K, in the magnetically-ordered state, to more than 34% of the total moment (4.01 \mu B). The same calculations yield for NiO the orbital and total moment of 0.46 \mu B and 2.45 \mu B, respectively. PACS No: 71.70.E; 75.10.D Keywords: 3d magnetism, crystal field, spin-orbit coupling, orbital moment, CoO, NiO

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