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Jauho, A. P. Simulations of interference effects in gated two-dimensional ballistic electron systems / A. P. Jauho, K. N. Pichugin, A. F. Sadreev> // Phys. Rev. B. - 1999. - Vol. 60, Is. 11. - P. 8191-8198, DOI 10.1103/PhysRevB.60.8191. - Cited References: 26
. - ISSN 0163-1829РУБ Physics, Condensed Matter Рубрики: CIRCULAR BENDS WAVE-GUIDES QUANTUM CONDUCTANCE FLOW GAS Аннотация: We present detailed simulations addressing recent electronic interference experiments,where a metallic gate is used to locally modify the Fermi wavelength of the charge carriers. Our numerical calculations are based on a solution of the one-particle Schrodinger equation for a realistic model of the actual sample geometry, including a Poison equation-based determination of the potential due to the gate. The conductance is determined with the multiprobe Landauer-Buttiker formula, and in general we find conductance vs gate voltage characteristics, which closely resemble the experimental traces. A detailed examination based on quantum-mechanical streamlines suggests that the simple one-dimensional semiclassical model often used to describe the experiments has only a limited range of validity, and that certain ''unexpected" periodicities should not be assigned any particular significance, they arise due to the complicated multiple scattering processes occurring in certain sample geometries.
WOS, Читать в сети ИФ Держатели документа: Tech Univ Denmark, Mikroelekt Ctr, DK-2800 Lyngby, Denmark LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia Acad Sci Czech Republ, Inst Phys, CR-16200 Prague, Czech Republic Abo Akad Univ, Dept Phys, SF-20500 Turku, Finland ИФ СО РАН Доп.точки доступа: Pichugin, K. N.; Пичугин, Константин Николаевич; Sadreev, A. F.; Садреев, Алмаз Фаттахович } Найти похожие
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