Electronic and magnetic states in the two-band Hubbard model
โ Scribed by V. P. Lukin
- Publisher
- Springer US
- Year
- 1998
- Tongue
- English
- Weight
- 395 KB
- Volume
- 88
- Category
- Article
- ISSN
- 1573-8795
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๐ SIMILAR VOLUMES
Occurrence of high-spin ground states in strongly-correlated electron systems is explored. In the single-band Hubbard model, high-spin states arise even for small U due to a 'k-space Hund's coupling', which cross over to strong-U states including Nagaoka's state around the half filling. The magnetic
The antiferromagnetic (AFM) state in the three-band Hubbard model on a CuO 2 plane is studied by using both the variational Monte Carlo (VMC) method based on the Gutzwiller wave function and the Rice-Ueda type Gutzwiller approximation (GA). Near half-filling, the VMC energy is significantly improved