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Polaron crossover and bipolaronic metal–insulator transition in the half-filled Holstein model

✍ Scribed by M. Capone; S. Ciuchi; G. Sangiovanni

Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
173 KB
Volume
359-361
Category
Article
ISSN
0921-4526

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We investigate the electronic state of the 11 band d-p model on the two-dimensional triangular lattice simulating a CoO 2 plane in the layered cobalt oxides such as Na x CoO 2 and Na x CoO 2 AE yH 2 O. The tight-binding parameters are determined so as to fit the LDA band structure. Using the slave b