Shell Filling and Spin Effects in a Few Electron Quantum Dot
نویسندگان
چکیده
منابع مشابه
Shell Filling and Spin Effects in a Few Electron Quantum Dot.
We study atomiclike properties of artificial atoms by measuring Coulomb oscillations in vertical quantum dots containing a tunable number of electrons starting from zero. At zero magnetic field the energy needed to add electrons to a dot reveals a shell structure for a two-dimensional harmonic potential. As a function of magnetic field the current peaks shift in pairs, due to the filling of ele...
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Singlet-triplet spin blockade in a few-electron lateral double quantum dot is investigated using simultaneous transport and charge-sensing measurements. Transport from the 1,1 to the 0,2 electron occupancy states is strongly suppressed relative to the opposite bias 0,2 – 1,1 . At large bias, spin blockade ceases as the 0,2 triplet state enters the transport window, giving a direct measure of ex...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1996
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.77.3613