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A Study on the Magnetic Properties of Compressed D 4h Clusters
Author(s) -
Moreno M.
Publication year - 1977
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220820233
Subject(s) - value (mathematics) , ion , symmetry (geometry) , chemistry , mechanism (biology) , point (geometry) , ligand (biochemistry) , physics , atomic physics , crystallography , nuclear magnetic resonance , mathematics , geometry , quantum mechanics , statistics , biochemistry , organic chemistry , receptor
A new mechanism for understanding the g zz ‐ g 0 value in compressed D 4h clusters formed by d 9 ions is studied. This mechanism is essentially determined by the A 2g non‐bonding level, the ligand spin‐orbit coefficient playing a decisive role. The value of this contribution strongly depends on the degree of hybridization of the equatorial ligands in the A 1g ground level. In cases with “true” D 4h symmetry (and specially in Cu 2+ : NH 4 Br) the new mechanism can well account for the experimental g zz ‐ g 0 value without considering the influence of the zero‐point motion. In contrast, in Ni + :LiF, it is shown that the latter is mainly responsible for the observed g zz ‐ g 0 value.