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Magnetic phase diagram of the Hubbard model with next-nearest neighbor hopping

โœ Scribed by R. Peters; Th. Pruschke

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
310 KB
Volume
404
Category
Article
ISSN
0921-4526

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โœฆ Synopsis

We study the interplay between antiferromagnetism and the paramagnetic metal-insulator-transition (PMIT) on a Bethe lattice with nearest and next-nearest neighbor hopping. For t 2 =t 1 -1 the PMIT outgrows the antiferromagnetic phase and shows a scenario similar to V 2 O 3 . We also look at other ordered phases for the doped system, where we find a ferromagnetic phase.

๐Ÿ“œ SIMILAR VOLUMES

The phase diagram of the 2D Ising model
The phase diagram of the 2D Ising model with anisotropic next-nearest-neighbor and four-spin interactions
โœ Fugao Wang; Masuo Suzuki ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 479 KB

In the present paper, the two-dimensional Ising model with anisotropic nearest-neighbor, nextnearest-neighbor and four-spin interactions has been studied. The ground states and energy of the model have been obtained. The model is equivalent to an eight-vertex model on its dual lattice. In some speci