Autor: Wołoszyn, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Spin Conductance of Nanowires with Double Coupled Quantum Dots
Autorzy:: Wołoszyn, M.
Spisak, B.
Wójcik, P.
Adamowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/1398537.pdf
Data publikacji:: 2016-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 72.25.Dc
73.63.Nm
Opis:: Using the computer simulations we have studied the spin conductance of the InAs nanowire with three all-around gates that generate two coupled quantum dots in the nanowire. We have assumed that the same constant voltage is applied to the outermost (left and right) gates and investigated the effect of the varying central-gate voltage (V_{G}) and axially directed magnetic field B on the spin currents. The calculated spin-up and spin-down conductances exhibit pronounced oscillations as functions of V_{G}. In certain intervals of V_{G}, both the spin conductances oscillate in antiphase, which can be applied to the spin-filter operation.
Źródło:: Acta Physica Polonica A; 2016, 129, 1a; A-114-A-116
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Application of Non-Classical Distribution Function to Transport Properties of Semiconductor Nanodevices
Autorzy:: Wójcik, P.
Spisak, B.
Wołoszyn, M.
Adamowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/1812023.pdf
Data publikacji:: 2008-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.63.-b
73.21.Ac
72.80.Ey
Opis:: The non-classical distribution function formalism is used for studying the electron transport in a nanosystem. We calculated the current-voltage characteristics of a triple barrier one-dimensional nanostructure which is connected to three-dimensional (highly doped semiconductor) reservoirs by the ohmic contacts. We also estimated the peak-to-valley ratio for the considered nanostructure and discussed the effect of switching the bias from peak-to-valley and from valley-to-peak voltages.
Źródło:: Acta Physica Polonica A; 2008, 114, 5; 1431-1436
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Simulation of Spin-Dependent Electronic Transport through Resonant Tunnelling Diode with Paramagnetic Quantum Well
Autorzy:: Wójcik, P.
Spisak, B. J.
Wołoszyn, M.
Adamowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/2048076.pdf
Data publikacji:: 2011-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 72.25.Dc
73.63.-b
Opis:: The spin-dependent electronic transport is investigated in a paramagnetic resonant tunnelling diode formed from Zn$\text{}_{1 - x}$Mn$\text{}_{x}$Se quantum well between two ZnBeSe barrier layers. The spin-dependent current-voltage characteristics have been obtained in the presence of magnetic fields by solving the quantum kinetic equation for the Wigner distribution function and the Poisson equation in the self-consistent procedure. We have obtained two distinct current peaks due to the giant Zeeman splitting of electronic levels in a qualitative agreement with experiment. We have shown that the sign of spin current polarization can be reversed by tuning the bias voltage. Moreover, we have found the bias voltage windows with a nearly constant polarization.
Źródło:: Acta Physica Polonica A; 2011, 119, 5; 648-650
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Influence of Geometrical Parameters on the Transport Characteristics of Gated Core-Multishell Nanowires
Autorzy:: Palutkiewicz, T.
Wołoszyn, M.
Wójcik, P.
Adamowski, J.
Spisak, B.
Powiązania:: https://bibliotekanauki.pl/articles/1185174.pdf
Data publikacji:: 2016-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 72.80.Ey
73.63.Nm
85.35.-p
Opis:: Calculations of the current-voltage characteristics of the core-multishell nanowires for different radii of the core and various thicknesses of the shells are presented. A role of the conducting core and shells in the coherent transport under the influence of the gate voltage is discussed.
Źródło:: Acta Physica Polonica A; 2016, 129, 1a; A-111-A-113
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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