Single impurity Anderson model with Coulomb repulsion between conduction electrons on the nearest-neighbour ligand orbital

Journal of the Physical Society of Japan

Volumn 67, Issue 6, 1998, Pages 1844-1847

  Takayama, Ryu ^a   Sakai, Osamu ^a  

^a TOHOKU UNIVERSITY   (Japan)

Author keywords

Charge excitation; Coulomb repulsion between conduction electrons; Magnetic excitation; Numerical renormalization group method; Single particle excitation

Indexed keywords

EID: 22044435916     PISSN: 00319015     EISSN: None     Source Type: Journal    
DOI: 10.1143/JPSJ.67.1844     Document Type: Article

References (16)

1. T. Schork and P. Fulde: Phys. Rev. B 50 (1994) 1345.
2. J. Igarashi, K. Murayama and P. Fulde: Phys. Rev. B 52 (1995) 15966.
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4. T. Schork: Phys. Rev. B 53 (1996) 5626.
5. B. Davidovich and V. Zevin: preprint (cond-mat/9706283).
6. S. Tornow, V. Zevin and G. Zwicknagl: preprint(cond-mat/9701137).
7. For example, the Hubbard model in the infinite dimensional space (d = ∞ model) can be mapped onto the impurity Anderson model.
8. O. Sakai, Y. Shimizu and T. Kasuya: Prog. Theor. Phys. Suppl. 108 (1992) 73.
9. L similar to the effective bandwidth of the d = ∞ model.
10. F is unchanged.
11. H. B. Krishna-murthy, J. W. Wilkins and K. G. Wilson: Phys. Rev. B 21 (1980) 1003;
12. H. B. Krishna-murthy, J. W. Wilkins and K. G. Wilson: Phys. Rev. B ibid. 1044.
13. We note that the phase shift of the conduction electron is also π/2 in this case.
14. In realistic situations, the Coulomb interaction between the f-electron and the conduction electrons is also important, see for example, R. Takayama and O. Sakai: J. Phys. Soc. Jpn. 66 (1997) 1512.
15. A. Georges, G. Kotliar, W. Krauth and M. J. Rozenberg: Rev. Mod. Phys. 68 (1996) 13 and references therein.
16. O. Sakai and Y. Kuramoto: Solid State Commun. 89 (1994) 307.