Équipe de Recherche en Physique de l'Information Quantique


Abstract = {A systematic experimental and theoretical study has been performed on the conductance oscillations of a rectangular dot as a function of the dot width at different fixed magnetic fields (including zero field). We provide a semiclassical interpretation of the fluctuations at zero and very low magnetic fields (≲0.05 T) in terms of specific families of periodic orbits, which occur in a classical rectangular billiard. At higher magnetic fields (0.1≲B≲0.25 T) the fluctuations become more aperiodic with reduced amplitudes while the Fourier spectrum contains no significant peaks. With a further increase in the field the cyclotron orbit fits within the dot and now a single frequency dominates the fluctuations, which is consistent with the (semi)classical predictions in this field region. Finally, as the edge-state regime is reached, Aharonov-Bohm oscillations take over.},
Author = {Zozoulenko, I.V. and Sachrajda, A.S. and Zawadzki, P. and Berggren, K.-F. and Feng, Y. and Wasilewski, Z.},
Document_Type = {Article},
Journal = {Physical Review B - Condensed Matter and Materials Physics},
Number = {16},
Pages = {10597-10601},
Source = {Scopus},
Title = {Conductance fluctuations in a rectangular dot at constant magnetic fields},
Url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0001281391&partnerID=40&md5=ea3ed43b7286bb21a82636a28118395c},
Volume = {58},
Year = {1998},
Bdsk-Url-1 = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0001281391&partnerID=40&md5=ea3ed43b7286bb21a82636a28118395c}}