Date of this Version
Physical Review Letters
A generalized average inverse participation ratio, for the one-electron wave functions of a dilute tight-binding model on a d-dimensional hypercubic lattice, is studied at finite magnetic fields. Extended wave functions appear above a quantum threshold bond concentration, pq. This threshold decreases at small magnetic fields, and shows a periodic dependence on the magnetic flux through a basic plaquette, with period φ0=ℏc/e. Extended states appear and disappear periodically even at d=2.
Meir, Y., Aharony, A., & Harris, A. (1986). Quantum Percolation in Magnetic Fields. Physical Review Letters, 56 (9), 976-979. http://dx.doi.org/10.1103/PhysRevLett.56.976
Date Posted: 12 August 2015
This document has been peer reviewed.