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Dimerization, spin-liquid state, and spin gap in square-lattice antiferromagnets

✍ Scribed by J.H. Xu; C.S. Ting


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
454 KB
Volume
177
Category
Article
ISSN
0375-9601

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In this work we study the pairing symmetry in a square lattice within a generalized Hubbard model, in which a second-neighbor correlated hopping is included in addition to the on-site and nearest-neighbor repulsions. When an infinitesimal distortion of the right angles in the square lattice is consi