1996
DOI: 10.1063/1.362523
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Subband mixing in resonant magnetotunneling through double-barrier semiconductor nanostructures

Abstract: We investigate subband mixing in the magnetotunneling of an electron through a double-barrier quantum dot. The fine structure in the current-voltage characteristics, observed in a device formed by a quantum-dot sandwiched by two quantum-wire contacts, is studied as a function of a magnetic field applied along the direction of the tunneling current. The increase of the magnetic field in this one-dimensional-zero-dimensional-one-dimensional tunneling process leads to a transition from a low-field regime dominate… Show more

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Cited by 2 publications
(1 citation statement)
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“…Semiconductor quantum dots constitute a quasi ideal system for the study of the physical properties of a two-dimensional system of strongly interacting electrons, laterally confined by an external potential. From the theoretical point of view, computer simulation [3,4] has achieved the greatest success inusmuch as approximate analytical methods [5] have encountered dificulties, since both the many body effects and the individual behavior of each electron have a crucial role in these systems. The major difficulty in the theoretical methods is due to the fact that the electrons in the quantum dots are confined in a very small area and hence they cannot be treated as part of a continuous distribution of charges.…”
Section: Introduction and Modelmentioning
confidence: 99%
“…Semiconductor quantum dots constitute a quasi ideal system for the study of the physical properties of a two-dimensional system of strongly interacting electrons, laterally confined by an external potential. From the theoretical point of view, computer simulation [3,4] has achieved the greatest success inusmuch as approximate analytical methods [5] have encountered dificulties, since both the many body effects and the individual behavior of each electron have a crucial role in these systems. The major difficulty in the theoretical methods is due to the fact that the electrons in the quantum dots are confined in a very small area and hence they cannot be treated as part of a continuous distribution of charges.…”
Section: Introduction and Modelmentioning
confidence: 99%