صاحب سرا, پیمان
دانشگاه صنعتی اصفهان
[ 1 ] - ترابرد در دیودهای تونلزنی تشدیدی نقطه کوانتومی در رژیم غیربرهمکنشی
In this paper, we used green's function approach in microscopic theory to investigate a resonant tunneling diode (RTD). We introduced the detailed Hamiltonian for each part of the photovoltaic p-i-n system, then by calculating the green's function components in tight-binding approximation, we calculate local density of states and current-voltage characteristic of the p-i-n structure. Our result...
[ 2 ] - وابستگی نظم پیچشی به درجه همسانگردی در هامیلتونی هابارد شبکههای مثلثی
Investigation of broken symmetry phases with long range order in strongly correlated electron systems is among subjects that have always been of interest to condensed matter scientists. In this paper we tried to study the existence of the 120 degrees magnetic spiral order, based on anisotropy in geometrically frustrated triangular lattices, using variational cluster approximation. We observed t...
[ 3 ] - بررسی ابررسانایی نامتعارف در شبکه لانه زنبوری
The possibility of symmetrical s-wave superconductivity in the honeycomb lattice is studied within a strongly correlated regime, using the Hubbard model. The superconducting order parameter is defined by introducing the Green function, which is obtained by calculating the density of the electrons . In this study showed that the superconducting order parameter appears in doping interval be...
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