Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2002-09-25
Acta Phys. Pol. B 34, 811 (2003)
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages, 2 figures
Scientific paper
The half-filled two-dimensional Hubbard model in presence of a uniform and static parallel magnetic field has been studied by means of the Composite Operator Method. A fully self-consistent solution, fulfilling all the constrains coming from the Pauli principle, has been found. The relevant features of a metal-insulator transition in presence of a magnetic field have been analyzed. The results qualitatively agree with the ones recently obtained by means of experimental investigations.
Avella Adolfo
Mancini Ferdinando
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