Stark effect in finite-barrier quantum wells, wires, and dots
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چکیده
منابع مشابه
Conductance in quantum wires by three quantum dots arrays
A noninteracting quantum-dot arrays side coupled to a quantum wire is studied. Transport through the quantum wire is investigated by using a noninteracting Anderson tunneling Hamiltonian. The conductance at zero temperature develops an oscillating band with resonances and antiresonances due to constructive and destructive interference in the ballistic channel, respectively. Moreover, we have fo...
متن کاملConductance in quantum wires by three quantum dots arrays
A noninteracting quantum-dot arrays side coupled to a quantum wire is studied. Transport through the quantum wire is investigated by using a noninteracting Anderson tunneling Hamiltonian. The conductance at zero temperature develops an oscillating band with resonances and antiresonances due to constructive and destructive interference in the ballistic channel, respectively. Moreover, we have fo...
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A scattering mechanism stemming from the Stark-shift of energy levels by electric fields due to interface roughness in semiconductor quantum wells is identified. This scattering mechanism feeds off interface roughness and electric fields and modifies the well known “sixth-power” law of electron mobility degradation. This work first treats Stark-effect scattering in rough quantum wells as a pert...
متن کاملValley splitting in finite barrier quantum wells
Valley splitting in finite barrier quantum wells" (2008). Birck and NCN Publications. Paper 148. The valley splitting ͑VS͒ in a silicon quantum well is calculated as a function of barrier height with both the multiband sp 3 d 5 s ء model and a simple two-band model. Both models show a strong dependence of the VS on barrier height. For example, in both models some quantum wells exhibit a sharp m...
متن کاملconductance in quantum wires by three quantum dots arrays
a noninteracting quantum-dot arrays side coupled to a quantum wire is studied. transport through the quantum wire is investigated by using a noninteracting anderson tunneling hamiltonian. the conductance at zero temperature develops an oscillating band with resonances and antiresonances due to constructive and destructive interference in the ballistic channel, respectively. moreover, we have fo...
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ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2017
ISSN: 1367-2630
DOI: 10.1088/1367-2630/aa6499