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We investigate the microwave transport properties of quasi-one-dimensional channels with disorder. The correspondence between quantum and classical wave equations allows to use classical waves to understand electron transport properties in new low dimensional materials like nanowires and graphene stripes. Theoretical studies predict that the trans- port should strongly depend on the correlation of the disorder for bulk [1] and surface [2] disorder. These correlations can be created by inserting brass bars or copper cylin- ders into the waveguide and allow for a precise prescription of the transport properties of a given frequency region. Previous studies could confirm these results [3] in a one- dimensional channel with bulk disorder. We were able to expand these observations to various types of disorder. We found a strong non-evanescent transport unpredicted by theory in systems with scatterers in a frequency region where only evanescent transport is expected. [1] J. C. Herrej´n, F. M. Izrailev, and L. Tessieri, Physica E 40, 3137 (2008). [2] M. Rend´n, F. M. Izrailev, and N. M. Makarov, Phys. Rev. B 75, 205404 (2007). [3] U. Kuhl, F. M. Izrailev, and A. A. Krokhin, Phys. Rev. Lett. 100, 126402 (2008). Authors: Otto Dietz(1) , Ulrich Kuhl(1) , Hans-Jurgen Stockmann(1), Felix M. Izrailev(2) and Nykolay M. Makarov(2) (1) Fachbereich Physik, Philipps-Universität Marburg, Renthof 5, D-35032 Marburg, Germany (2) Instituto de Fisica, Universidad Autonoma de Puebla, Puebla 72570, Mexico |
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