2008
DOI: 10.1016/j.physe.2007.09.198
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Quantum dots as tunable scatterers for 2D- and 1D-electron systems

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Cited by 6 publications
(3 citation statements)
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“…1) were shown to induce scattering [11][12][13][14][15] , were studied with capacitance spectroscopy 16,17 and were used for charge storage 18 . Transport spectroscopy of a few or even single SAQDs in 2DEG structures were also done [19][20][21] . High-mobility 2DEGs in sufficiently close proximity to enable tunneling to narrow-linewidth optical dots have so far not been demonstrated.…”
mentioning
confidence: 99%
“…1) were shown to induce scattering [11][12][13][14][15] , were studied with capacitance spectroscopy 16,17 and were used for charge storage 18 . Transport spectroscopy of a few or even single SAQDs in 2DEG structures were also done [19][20][21] . High-mobility 2DEGs in sufficiently close proximity to enable tunneling to narrow-linewidth optical dots have so far not been demonstrated.…”
mentioning
confidence: 99%
“…Early efforts were motivated by the possibility of creating a transistor where the gate bias modified the mobility rather than the carrier density of the 2DEG. Thus, many experiments have investigated the influence of nearby SAQDs on the mobility of carriers in the 2DEG [37][38][39][40][41][42][43][44][45]. These experiments measure slight reductions in mobility due to the SAQDs, however values as high as 0.5 × 10 6 cm 2 /Vs are observed even in the presence of a SAQD layer 45 nm away [40].…”
Section: Relation To Other Approaches In Quantum Coherent Semiconduct...mentioning
confidence: 99%
“…The sample growth sequence can be found in Ref. [ 11 , 12 ]. We have prepared Hall bar devices with a metallic top gate in order to control the charge state of the dots and the 2DEG.…”
Section: Sample Descriptionmentioning
confidence: 99%