Publications [#245768] of Albert M. Chang

Papers Published
  1. Timp, G; Chang, AM; Cunningham, JE; Chang, TY; Mankiewich, P; Behringer, R; Howard, RE, Observation of the Aharonov-Bohm effect for c>1, Physical Review Letters, vol. 58 no. 26 (1987), pp. 2814-2817 [doi] .

    We have observed the Aharonov-Bohm effect in the magnetoresistance of doubly connected geometries fabricated in high-mobility GaAs/AlGaAs heterostructures. Periodic oscillations in the resistance associated with the fluxs penetrating the annulus are suppressed above c5, where c is the cyclotron frequency and is the scattering time, while fluctuations in the resistance as a function of magnetic field are observed for 0<c<300, superimposed upon Shubnikov-deHaas oscillations. © 1987 The American Physical Society.