Quantum Magnetism of CuGeO{sub 3}
Journal Article
·
· Physical Review Letters
- Department of Physics, Brookhaven National Laboratory, Upton, New York 11793 (United States)
The magnetic properties of CuGeO{sub 3}are shown to be well described by the one-dimensional Heisenberg {ital S}={ital cf};1;2 model with competing antiferromagnetic interactions. Provided that the competing exchange is moderately large but smaller than the critical value required to produce a gap in the excitation spectrum without lattice dimerization, the model agrees with a variety of experimental properties. It is argued that competing exchange interactions are a general feature of organic charge transfer compounds, and that they increase the temperature at which a spin-Peierls transition takes place.
- Research Organization:
- Brookhaven National Laboratory
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 116028
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 9 Vol. 75; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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