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Frustration, satisfaction and degeneracy in triangle-based lattices

โœ Scribed by A. J. Berlinsky; C. Kallin


Book ID
112685866
Publisher
Springer
Year
1994
Tongue
English
Weight
319 KB
Volume
85
Category
Article
ISSN
0304-3843

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Highly frustrated lattices yield a completely flat lowest single-electron band. Remarkably, exact manybody ground states can be constructed for the repulsive Hubbard model and the t2J model by filling this flat band with localized electron states. This construction leads to a macroscopic ground-stat