GROUND STATE OF THE 2D EXTENDED HUBBARD MODEL WITH MORE THAN NEAREST-NEIGHBOR INTERACTIONS
作者： S. HARIR , M. BENNAI , Y. BOUGHALEB
DOI: 10.1142/S0217979212501561
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摘要: We investigate the ground state phase diagram of two dimensional Extended Hubbard Model (EHM) with more than Nearest-Neighbor (NN) interactions for finite size system at low concentration. This EHM is solved analytically square lattice one-eighth filling. All eigenvalues and eigenvectors are given as a function on-site repulsion energy U off-site interaction Vij. The behavior exhibits emergence diagram. obtained results clearly underline that exceeding NN distances in range can significantly influence conductor–insulator transition.
sci-hub.se 参考文章(19)
D. M. King, Z.-X. Shen, D. S. Dessau, B. O. Wells, W. E. Spicer, A. J. Arko, D. S. Marshall, J. DiCarlo, A. G. Loeser, C. H. Park, E. R. Ratner, J. L. Peng, Z. Y. Li, R. L. Greene, Fermi surface and electronic structure of Nd 2-x Ce x CuO 4-δ Physical Review Letters. ,vol. 70, pp. 3159- 3162 ,(1993) , 10.1103/PHYSREVLETT.70.3159
S. Raghu, E. Berg, A. V. Chubukov, S. A. Kivelson, Effects of longer-range interactions on unconventional superconductivity Physical Review B. ,vol. 85, pp. 024516- ,(2012) , 10.1103/PHYSREVB.85.024516
J. A. Pople, Electron interaction in unsaturated hydrocarbons Transactions of the Faraday Society. ,vol. 49, pp. 1375- 1385 ,(1953) , 10.1039/TF9534901375
P.W. Anderson, Two new developments in the theory of high Tc superconductivity Physica B: Condensed Matter. ,vol. 199-200, pp. 8- 14 ,(1994) , 10.1016/0921-4526(94)91720-5
E. Kovács, Z. Gulácsi, Exact ground states for the four-electron problem in a two-dimensional finite Hubbard square system Philosophical Magazine. ,vol. 86, pp. 2073- 2099 ,(2006) , 10.1080/14786430500070347
R. R. Jia, J. C. Zhang, R. K. Zheng, D. M. Deng, H.-U. Habermeier, H. L. W. Chan, H. S. Luo, S. X. Cao, Effects of ferroelectric-poling-induced strain on the quantum correction to low-temperature resistivity of manganite thin films Physical Review B. ,vol. 82, pp. 104418- ,(2010) , 10.1103/PHYSREVB.82.104418
C. Verdozzi, M. Cini, Extended Hubbard model with off-site interactions: Two-particle spectrum and Auger line shapes. Physical Review B. ,vol. 51, pp. 7412- 7420 ,(1995) , 10.1103/PHYSREVB.51.7412
J. Beenen, D. M. Edwards, Superconductivity in the two-dimensional Hubbard model Physical Review B. ,vol. 52, pp. 13636- 13651 ,(1995) , 10.1103/PHYSREVB.52.13636
Qingshan Yuan, Feng Yuan, C. S. Ting, Doping dependence of the electron-doped cuprate superconductors from the antiferromagnetic properties of the Hubbard model Physical Review B. ,vol. 72, pp. 054504- ,(2005) , 10.1103/PHYSREVB.72.054504
Shaon Sahoo, V M L Durga Prasad Goli, S Ramasesha, Diptiman Sen, Exact entanglement studies of strongly correlated systems: role of long-range interactions and symmetries of the system Journal of Physics: Condensed Matter. ,vol. 24, pp. 115601- ,(2012) , 10.1088/0953-8984/24/11/115601