Papers
Published 21-09-2016
Keywords
- metal-insulator transition,
- phase diagram,
- disordered Hubbard model
How to Cite
Tuan, H. A., & Yen, N. T. H. (2016). Metal-insulator Phase Diagram for the Fully Diagonal Disordered Hubbard Model at Half-filling. Communications in Physics, 26(2), 159. https://doi.org/10.15625/0868-3166/26/2/8487
Abstract
The electronic properties of strongly correlated systems with binary type of disorder are investigated using the coherent potential approximation. For half-filled system, two transitions from a band insulator via a metallic state to a Mott insulator are found with increasing the correlation strength of only one of the constituents. Our phase diagram is consistent with those obtained by the dynamical mean field theory.Downloads
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References
- K. Byczuk, M.Ulmke, and D.Vollhardt, Phys. Rev. Lett. 90 (2003) 196403.
- K. Byczuk, M.Ulmke, Eur. Phys. J. B 45 (2005) 449.
- K. W. Kim et al., Phys. Rev. B 71 (2005) 125104.
- P. Lombardo, J. C. Guisiano, R. Hayn, Physica B 403 (2008) 3485.
- K. Elk, Ann. Phys. (Leipzig) 33 (1976) 275.
- B. Velicky, S. Kirkpatrick, and H. Ehremreich, Phys. Rev. 175 (1968)747.
- A. Garg, H. R. Krishnamurthy, and M. Randeria, Phys. Rev. Lett. 97 (2006) 046403.
- L. Craro, et al., Phys. Rev. B 78 (2008) 075121.
- K. Byczuk, et al., Phys. Rev. B 79 (2009) 121103 (R).
- A. T. Hoang, J. Phys.: Cond. Matt. 22 (2010) 095602.