Exact ground state of the two-dimensional Hubbard model at half-filling for U = 0+

Solid State Communications

Volumn 117, Issue 8, 2001, Pages 451-454

  Cini, Michele ^a   Stefanucci, Gianluca ^a  

^a UNIVERSITY OF ROME TOR VERGATA   (Italy)

Author keywords

A. Magnetically ordered materials; D. Electron electron interactions

Indexed keywords

ANTIFERROMAGNETISM; ELECTRON TRANSITIONS; GROUND STATE; MAGNETIZATION;

LATTICE HUBBARD MODELS;

MAGNETIC MATERIALS;

EID: 0035254312     PISSN: 00381098     EISSN: None     Source Type: Journal    
DOI: 10.1016/s0038-1098(00)00504-4     Document Type: Article

References (8)

1. E.H. Lieb, Phys. Rev. Lett. 62 (1989) 1201.
2. A. Moreo, E. Dagotto, Phys. Rev. B 41 (1990) 9488.
3. M. Cini, G. Stefanucci, cond-mat/0009058, to be published.
4. M. Hamermesh, Group Theory and its Application to Physical Problems, Addison-Wesley, Reading, MA, 1962.
5. M. Cini, A. Balzarotti, R. Brunetti, M. Gimelli, G. Stefanucci, Int. J. Mod. Phys. (2000) (in press, cond-mat/0005223).
6. M. Cini, G. Stefanucci, A. Balzarotti, Solid State Commun. 109 (1999) 229.
7. M. Cini, G. Stefanucci, A. Balzarotti, Eur. Phys. J. B 10 (1999) 293.
8. M. Cini, E. Perfetto, G. Stefanucci, cond-mat/0010292, to be published.