Impurity states of electrons in quantum dots in external magnetic fields
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چکیده
منابع مشابه
Structural properties of electrons in quantum dots in high magnetic fields: Crystalline character of cusp states and excitation spectra
The crystalline or liquid character of the downward cusp states in N-electron parabolic quantum dots at high magnetic fields is investigated using conditional probability distributions obtained from exact diagonalization. These states are of crystalline character for fractional fillings covering both low and high values, unlike the liquid Jastrow-Laughlin wave functions, but in remarkable agree...
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Rights: © 2004 American Physical Society (APS). This is the accepted version of the following article: Räsänen, E. & Harju, A. & Puska, M. J. & Nieminen, Risto M. 2004. Rectangular quantum dots in high magnetic fields. Physical Review B. Volume 69, Issue 16. 165309/1-5. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.69.165309, which has been published in final form at http://journals.aps.or...
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Glossary Quantum dot device: nanoscopic electronic device resembling a transistor which incorporates a quantum dot as the central active element; sometimes also called single electron transistor. A quantum dot is an extremely small puddle of electrons which can be considered as an artificial atom since the confinement of electrons leads to quantized energy levels: the electrons form orbitals mu...
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We consider the magnetic field dependence of the chemical potential for parabolically confined quantum dots in a strong magnetic field. Approximate expressions based on the notion that the size of a dot is determined by a competition between confinement and interaction energies are shown to be consistent with exact diagonalization studies for small quantum dots. Fine structure is present in the...
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Electrons in a one-electron quantum dot were imaged in the Coulomb blockade regime at liquid He temperatures using a cooled scanning probe microscope (SPM). The SPM images are obtained by scanning a charged tip above the surface of the quantum dot and recording the conductance through the quantum dot in the Coulomb blockade regime as a function of tip position. The lowest energy level in the do...
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ژورنال
عنوان ژورنال: The European Physical Journal B
سال: 2008
ISSN: 1434-6028,1434-6036
DOI: 10.1140/epjb/e2008-00392-5