Abstract
The concept of the four-atom Jahn-Teller resonance molecule. in transition metals is described, and its origin in the study of the Vb hydrides is retraced. The concept is schematically related to the theory of resonance localization of magnetic impurities. A model study that demonstrates plausibility and suggests generality of the four-atom resonance is reviewed. The nature of the electron correlation responsible for the resonance is revealed by a simple analogy to involve formation of a covalent bond. Generalization of the model Hamiltonian suggests the possibility of molecular magnetic moments and leads directly to a simple and successful description of magnetism in the Fe group.
Mound Facility is operated by Monsanto Research Corporation for the U. S. Department of Energy under Contract No. DE-AC04-76-DP00053.
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References
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Abell, G.C. (1981). Hydrogen in V, Nb, and Ta: Magnetism in Fe, Co, and Ni. In: Bambakidis, G. (eds) Metal Hydrides. NATO Advanced Study Institutes Series, vol 76. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-5814-6_13
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DOI: https://doi.org/10.1007/978-1-4757-5814-6_13
Publisher Name: Springer, Boston, MA
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