Effective masses derived from the low-field Shubnikov-de Haas oscillations in high mobility GaAs/AlGaAs samples are found to decrease systematically with...
The interaction of edge states via localized states leads to the “generic” breakdown of the quantum Hall effect. Using a versatile two-antidot structure we...
The magnetoconductance of quantum dots at high magnetic fields has been studied experimentally and theoretically as a function of the quantum dot barrier...
The design of surface gate patterns, used to define nanostructurcs in AlGaAs GaAs heterostructures, is greatly enhanced by the possibility of establishing...
Weak localization, a semiclassical process established in disordered systems, has recently been used as an experimental probe of the classical dynamics of...
We present the first demonstration of a nanostructural device with a central electrode (diameter ≊300 nm) which is contacted independently. This structure is...
We investigate both low and high field magnetotransport through submicron quantum dots using a six-gate coupled dot structure. At low fields we have studied...
Physica B: Physics of Condensed Matter, 1 mars 1991, Volume : 175, Numéro : 1-Mar
We report magnetoresistance measurements on staggered quantum contacts in series. The enhanced conductance reveals interesting effects associated with the...
Shubnikov-de Haas oscillations have been studied, at low temperatures, in a high-mobility quantum-Hall-effect sample. A linear increase with increasing...
The use of surface gates to define submicrometer-size dots incorporating quantum point contacts (QPC's) is proving profitable in investigating a number of...
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