Artículos de revistas
Quantifying the levitation picture of extended states in lattice models
Registro en:
Physical Review B. American Physical Soc, v. 66, n. 15, 2002.
1098-0121
WOS:000179080800102
10.1103/PhysRevB.66.155323
Autor
Pereira, ALC
Schulz, PA
Institución
Resumen
The behavior of extended states is quantitatively analyzed for two-dimensional lattice models. A levitation picture is established for both white-noise and correlated disorder potentials. In a continuum limit window of the lattice models we find simple quantitative expressions for the extended states levitation, suggesting an underlying universal behavior. On the other hand, these results point out that the quantum Hall phase diagrams may be disorder dependent. 66 15