Autor: Wolski, T - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Numerical Stability of Solution of Recursion Relation for Ideal Quantum Gases Containing Finite Number of Harmonically Trapped Particles
Autorzy:: Paszkiewicz, T.
Wolski, S.
Powiązania:: https://bibliotekanauki.pl/articles/1402575.pdf
Data publikacji:: 2015-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 05.30.Fk
03.75.Ss
Opis:: The numerical stability of the solution of recursion relation for mean occupation numbers derived by Schönhammer for ideal Fermi gas trapped in 1D harmonic potential is studied. In low temperature region there exists a solution of this recursion relation. In high temperature region the iteration becomes unstable. In low and high temperature regions with growing number of particles the region of numerical instability diminishes.
Źródło:: Acta Physica Polonica A; 2015, 128, 2; 204-207
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Response of Superconductor Bolometer to Phonon Fluxes
Autorzy:: Danilchenko, B. A.
Jasiukiewicz, Cz.
Paszkiewicz, T.
Wolski, S.
Powiązania:: https://bibliotekanauki.pl/articles/2035733.pdf
Data publikacji:: 2003-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 07.57.Kp
02.30.Hq
66.70.+f
Opis:: A metallic film bolometer with heat capacity C is in contact with thermal bath and with crystalline specimen and is biased by a constant current I$\text{}_{b}$. The thermal contact of the bolometer is characterized by the thermal conductance G. The bolometer operates in the linear regime of dependence of resistance on temperature characterized by a constantα. Experiments which allow one to measureα, C, and G are proposed. The characteristic timeτ=C/G and characteristic current I$\text{}_{m}=\sqrt{\text{G/α}}$ affect the effective relaxation rateΛ of the bolometer resistance R$\text{}_{b}$(t). The knowledge of the power W(t) absorbed by detector allows one to calculate R$\text{}_{b}$(t). The inverse problem of calculation of W(t) from known R$\text{}_{b}$(t) is also solved. The suitable algorithms are proposed. Deconvoluted absorbed power is obtained for experiments performed on GaAs and compared with phonoconductivity signal of two-dimensional electron gas structure as well as with results of Monte Carlo computer experiments.
Źródło:: Acta Physica Polonica A; 2003, 103, 4; 325-338
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Charge and Spin Transport in a Metal-Semiconductor Heterostructure with Double Schottky Barriers
Autorzy:: Wolski, S.
Jasiukiewicz, C.
Dugaev, V.
Barnaś, J.
Slobodskyy, T.
Hansen, W.
Powiązania:: https://bibliotekanauki.pl/articles/1386690.pdf
Data publikacji:: 2015-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.30.+y
73.40.-c
75.76.+j
Opis:: Taking into account the available experimental results, we model the electronic properties and current-voltage characteristics of a ferromagnet-semiconductor junction. The Fe/GaAs interface is considered as a Fe/(i-GaAs)/n⁺-GaAs/n-GaAs multilayer structure with the Schottky barrier. We also calculate numerically the current-voltage characteristics of a double-Schottky-barrier structure Fe/GaAs/Fe, which are in agreement with available experimental data. For this structure, we have estimated the spin current in the GaAs layer, which characterizes spin injection from the ferromagnet to the semiconductor.
Źródło:: Acta Physica Polonica A; 2015, 127, 2; 472-474
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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