Journal article
A limit function for long-range ferromagnetic and antiferromagnetic superexchange
Journal of physical chemistry (1952), Vol.83(18), pp.2387-2392
09/01/1979
DOI: 10.1021/j100481a017
Abstract
An experimentally determined limit function for long-range ferromagnetic and antiferromagnetic superexchange is proposed, the form of which comprises a quantitative statement of present knowledge of the "range" of superexchange effects in insulating solids. A possible functional form for this limit function, as well as for the general distance dependence of long-range superexchange, is also proposed. The fitting of this general function to experimental data for superexchange coupling vs. distance requires the fitting of three independent parameters. The possibility is considered that one of the parameters so obtained may be sensitive to the degree of extended character of the orbitals which mediate the superexchange effect. The superexchange limit function is shown to be important for characterizing the assignments of alternative paths of exchange interaction. It also serves to point out the need for improved theoretical methods for the analysis of the relative strength of competing paths of interaction in exchange coupled cluster complexes, and shows that there is a need for studies of superexchange interactions acting over distances greater than 6 Å
Details
- Title: Subtitle
- A limit function for long-range ferromagnetic and antiferromagnetic superexchange
- Creators
- R. E CoffmanG. R Buettner
- Resource Type
- Journal article
- Publication Details
- Journal of physical chemistry (1952), Vol.83(18), pp.2387-2392
- Publisher
- American Chemical Society
- DOI
- 10.1021/j100481a017
- ISSN
- 0022-3654
- eISSN
- 1541-5740
- Language
- English
- Date published
- 09/01/1979
- Academic Unit
- Chemistry; Radiation Oncology
- Record Identifier
- 9984313084702771
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