Please use this identifier to cite or link to this item:
|Title:||Calculation of the parameters of the extended Hubbard Hamiltonian for superconducting copper oxides|
|Citation:||Rushan, H., Chew, C.K., Phua, K.K., Gan, Z.Z. (1991). Calculation of the parameters of the extended Hubbard Hamiltonian for superconducting copper oxides. Journal of Physics: Condensed Matter 3 (41) : 8059-8066. ScholarBank@NUS Repository. https://doi.org/10.1088/0953-8984/3/41/005|
|Abstract:||All kinds of parameters Ud, Up, Udp, Ed, Ep, tdp, tpp and tdd in the extended Hubbard Hamiltonian which describe superconducting copper oxides are calculated directly by an ab initio method. The results show that a simple model such as the band structure or extreme (large U, single-band) Hubbard model gives an inadequate description of high Tc compounds. A more complex picture, the extended Hubbard model, may be appropriate. The values of U and t presented by the authors are in good agreement with the experimental data and comparable with those used by other theorists. The values of the charge transfer energy, however, are very dependent on the hole distribution. Their calculation method provides a way for approaching the relationship between the carrier distribution and the charge transfer energy.|
|Source Title:||Journal of Physics: Condensed Matter|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 21, 2019
WEB OF SCIENCETM
checked on Feb 12, 2019
checked on Dec 28, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.