Tunable 0.7 conductance plateau in quantum dots

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dc.creatorChung, Yunchul
dc.creatorJo, Sanghyun
dc.creatorChang, Dong-In
dc.creatorLee, Hu-Jong
dc.creatorZaffalon, M.
dc.creatorUmansky, V.
dc.creatorHeiblum, M.
dc.date2008-06-10
dc.date.accessioned2026-07-07T09:43:34Z
dc.date.available2026-07-07T09:43:34Z
dc.descriptionA consistent approach in forming the 0.7 structure by using a quantum dot rather than a quantum point contact is demonstrated. With this scheme, it was possible to tune on and off the 0.7 structure. The 0.7 structure continuously evolved into a normal integer conductance plateau by varying the tuning condition. Unlike the conventional 0.7 plateau, the new 0.7 structure was observed even at low electron temperatures down to 100 mK, with unprecedented flatness. From our results, it is concluded that electron interference should be taken into consideration to explain the 0.7 structure.
dc.identifierhttps://arxiv.org/abs/0806.1576
dc.identifierhttp://arxiv.org/abs/0806.1576
dc.identifierPhysical Review B 76, 035316 (2007)
dc.identifierdoi:10.1103/PhysRevB.76.035316
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/162607
dc.subjectMesoscale and Nanoscale Physics
dc.titleTunable 0.7 conductance plateau in quantum dots
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