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Abstract
We present results from a quantum and semiclassical theoretical study of the rho xy and rho xx resistivities of a high mobility 2D electron gas in the presence of a dilute random distribution of tubes with magnetic flux Phi and radius R, for arbitrary values of kfR and F=e Phi /h. We report on novel Aharonov-Bohm-type oscillations in rho xy and rho xx, related to degenerate quantum flux tube resonances, that satisfy the selection rule (kfR)2=4F(n+1/2), with n an integer. We discuss possible experimental conditions where these oscillations may be observed.
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