Based on a symmetry argument, we study ground states of what we call MMX-chain compounds, which are the new class of halogen-bridged metal complexes. Commensurate density-wave solutions of a relevant multi-band Peierls-Hubbard model are systematically revealed within the Hartree-Fock approximation.
Ground-state properties of the two-band model for halogen-bridged metal complexes
โ Scribed by Shoji Yamamoto
- Book ID
- 117542020
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 397 KB
- Volume
- 103
- Category
- Article
- ISSN
- 0379-6779
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๐ SIMILAR VOLUMES
Two dimensional spin-fermion model is studied by using the perturbation method and the spin wave approximation. Non-crossing diagrams are calculated using the dominant pole approximation. As a result, we see that the renormalization parameter z is reduced as z ยขx L -1;4, where L is the linear dimens
The T = 0 magnetic susceptibility and other ground state properties of the one-dimensional two-band Anderson-type model are studied in both the symmetric and the asymmetric cases. The magnetic susceptibility of the symmetric model exhibits the coherent Kondo lattice ground state in the strong-coupli