Long dephasing time and high temperature
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B Hackens; S Faniel; F Delfosse; C Gustin; H Boutry; I Huynen; X Wallart; S Boll
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Article
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2003
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Elsevier Science
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English
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We report on measurements of the magnetoconductance of an open circular InGaAs quantum dot between 1.3 and 204 K. We observe two types of magnetoconductance uctuations: universal conductance uctuations (UCFs), and "focusing" uctuations related to ballistic trajectories between openings. The electron