منابع مشابه
Selected Topics in the Theory of 1D Quantum Wires
A qualitative discussion of recent theoretical results in the physics of 1D quantum wires is provided here. The consideration is mainly focused on observable quantities, such as conductance, persistent current, and X-Ray response functions, which are discussed in simple terms. Lecture given at the Landau Institute Seminar, Col de Port, March 1994. Typeset using REVTEX 1
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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...
متن کاملInhomogeneous boundary effects in semiconductor quantum wires
Abslract Boundary effects play an essential role in determining the physical properties of semiconductor quantum wires. Additional features come into play when one considers inhomogeneous boundaries, i.e. wires whose widths are functions of distance along the length of the wire. We show that, in the adiabatic approximation (which assumes that the boundary patential fluctuation effects, or equiv...
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We investigate intersubband mixing effects in multichannel quantum wires in the presence of Rashba spin-orbit coupling and attached to two terminals. When the contacts are ferromagnetic and their magnetization direction is perpendicular to the Rashba field, the spin-transistor current is expected to depend in an oscillatory way on the Rashba coupling strength due to spin coherent oscillations o...
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ژورنال
عنوان ژورنال: Materials Today
سال: 2016
ISSN: 1369-7021
DOI: 10.1016/j.mattod.2016.11.017