| Autor: |
Bleszynski-Jayich, A. C., Froberg, L. E., Bjork, M. T., Trodahl, H. J., Samuelson, L., Westervelt, R. M. |
| Rok vydání: |
2008 |
| Předmět: |
|
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.77.245327 |
| Popis: |
Nanowire heterostructures define high-quality few-electron quantum dots for nanoelectronics, spintronics and quantum information processing. We use a cooled scanning probe microscope (SPM) to image and control an InAs quantum dot in an InAs/InP nanowire, using the tip as a movable gate. Images of dot conductance vs. tip position at T = 4.2 K show concentric rings as electrons are added, starting with the first electron. The SPM can locate a dot along a nanowire and individually tune its charge, abilities that will be very useful for the control of coupled nanowire dots. |
| Databáze: |
arXiv |
| Externí odkaz: |
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