Department of Physics Papers

Document Type

Journal Article

Date of this Version

3-3-1986

Publication Source

Physical Review Letters

Volume

56

Issue

9

Start Page

976

Last Page

979

DOI

10.1103/PhysRevLett.56.976

Abstract

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.

Share

COinS
 

Date Posted: 12 August 2015

This document has been peer reviewed.