1970/01/01 by Ivan Shorubalko, I. Shorubalko, Renaud Leturcq +10 · 1 citation
Biochemistry, Genetics and Molecular Biology · Engineering · Medicine · Nursing · Physics and Astronomy · #Advancements in Semiconductor Devices and Circuit Design #Charge (physics) #Chemotherapy #Condensed matter physics #Coulomb blockade #Detector #Electron #Internal medicine #Leukopenia #Materials science #Medicine #Nanotechnology #Nanowire #Nuts composition and effects #Optics #Optoelectronics #Physics #Quantum and electron transport phenomena #Quantum dot #Quantum dot laser #Quantum mechanics #Quantum point contact #Quantum well #Quantum wire #Radiation therapy #Saffron Plant Research Studies #Semiconductor #Semiconductor materials and devices #Transistor #cond-mat.mes-hall #melanin and skin pigmentation
paper · pdf · doi:10.1021/nl072522j
published as Nanoletters 8, 382 (2008) · 11 pages, 3 figures
openalex publication_date 1970/01/01 · arxiv created 2008/03/18 · arxiv updated 2015/05/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/04/28
A highly sensitive charge detector is realized for a quantum dot in an InAs nanowire. We have developed a self-aligned etching process to fabricate in a single step a quantum point contact in a two-dimensional electron gas and a quantum dot in an InAs nanowire. The quantum dot is strongly coupled to the underlying point contact that is used as a charge detector. The addition of one electron to the quantum dot leads to a change of the conductance of the charge detector by typically 20%. The charge sensitivity of the detector is used to measure Coulomb diamonds as well as charging events outside the dot. Charge stability diagrams measured by transport through the quantum dot and charge detection merge perfectly.