Temat: 85.35.Kt - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Compact Modeling of the Performance of SB-CNTFET as a Function of Geometrical and Physical Parameters
Autorzy:: Diabi, A.
Hocini, A.
Powiązania:: https://bibliotekanauki.pl/articles/1401300.pdf
Data publikacji:: 2015-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 85.35.Kt
85.30.Tv
Opis:: In this work, we study the effects of geometrical and physical parameters on the performances of SB-CNTFET using a compact model. The influences of the physical parameters (height of the Schottky barrier ($\Phi_{SB}$) capacity of oxide layer $(C_{INS})$ and geometrical parameter (nanotube diameter $(d_{CNT})$) on the static performance $(I_\text{ON}//I_\text{OFF})$ of SB-CNTFET have been investigated. We present a detailed analysis of the electrical performance of the SB-CNTFET or current-voltage characteristics$ (I_{D}=f(V_{DS})$ for different values of $V_{GS}$, and also the characteristics $(I_{D}=f(V_{GS}))$ for different values of $V_{DS}$. All these circuits are studied for a fixed value of $\Phi_{SB}=0.275 eV$.
Źródło:: Acta Physica Polonica A; 2015, 127, 4; 1124-1127
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Comparative Studies on Giant Magnetoresistance in Carbon Nanotubes and Graphene Nanoribbons with Ferromagnetic Contacts
Autorzy:: Krompiewski, S.
Powiązania:: https://bibliotekanauki.pl/articles/1810558.pdf
Data publikacji:: 2009-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 85.35.Kt
81.05.Uw
75.47.De
73.23.Ad
Opis:: This contribution reports on comparative studies on giant magnetoresistance in carbon nanotubes and graphene nanoribbons of similar aspect ratios (i.e. perimeter/length and width/length ratios, for the former and the latter, respectively). The problem is solved at zero temperature in the ballistic transport regime, by means of the Green functions technique within the tight-binding model and with the so-called wide band approximation for electrodes. The giant magnetoresistance effect in graphene is comparable to that of carbon nanotubes, it depends strongly on the chirality and only slightly on the aspect ratio. It turns out that graphene, analogously to carbon nanotubes may be quite an interesting material for spintronic applications.
Źródło:: Acta Physica Polonica A; 2009, 115, 1; 319-321
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Ab Initio Analysis of a Quantum Dot Induced by a Local External Potential in a Semiconducting Carbon Nanotube
Autorzy:: Kostyrko, T.
Krompiewski, S.
Powiązania:: https://bibliotekanauki.pl/articles/1810605.pdf
Data publikacji:: 2009-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.48.De
85.35.Kt
73.21.La
73.22.-f
Opis:: Using the density functional theory we study the influence of external charge probes on the electronic structure of semiconducting carbon nanotubes in the vicinity of the Fermi level. We show that the spatially limited potential due to the probe can create localized electronic states in the energy gap and at the edges of the conductance band. By filling these localized states with additional electrons one obtains a quantum dot, which can be tuned by modifying the properties of the external charge probe. We analyze dependence of the electronic structure of the dot on the spatial extension of the potential as well as on the nanotube radius.
Źródło:: Acta Physica Polonica A; 2009, 115, 1; 387-389
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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