Abstract By using the bosonization and renormalization group methods, we have studied the low energy physical properties in the one-dimensional dimerized Hubbard model. The formation of charge and spin gaps is investigated both for the half-filled electron band and away from the half-filled band. The scaling laws of the charge and spin gaps with the dimerization parameter $\varDelta$ and the repulsive interaction strength U are obtained.
Received: 03 March 2000
Accepted manuscript online:
PACS:
75.10.Lp
(Band and itinerant models)
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 19975031) and the RFDP (Grant No. 199024833).
Cite this article:
Ding Guo-hui (丁国辉), Ye Fei (叶飞), Xu Bo-wei (许伯威) CHARGE AND SPIN GAPS IN THE DIMERIZED HUBBARD MODEL 2000 Chinese Physics 9 615
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