Autor: Wilamowski, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Localized Spin Relaxation Due To Coupling To Effective Mass States
Autorzy:: Wilamowski, Z.
Dmochowski, J. E.
Jantsch, W.
Powiązania:: https://bibliotekanauki.pl/articles/1968446.pdf
Data publikacji:: 1997-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.10.Jm
75.50.-y
Opis:: The EPR of residual Mn in CdF$\text{}_{2}$ doped with Y, In and Ga is investigated. Although these donors are barely seen in EPR, they manifest themselves by a new effect: a drastic resonant reduction in the longitudinal relaxation rate of Mn which occurs only if the Zeeman splitting of the two subsystems coincide. In this situation, the saturation of those of the six Mn hyperfine lines is weakened which coincide with the shallow donor resonance.
Źródło:: Acta Physica Polonica A; 1997, 92, 5; 1055-1058
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Consequences of Spatial Fluctuation of Coulomb Potential in AlGaAs with DX Centers
Autorzy:: Wilamowski, Z.
Kossut, J.
Jantsch, W.
Ostermayer, G.
Powiązania:: https://bibliotekanauki.pl/articles/1890983.pdf
Data publikacji:: 1991-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.55.Dp
71.45.Jp
72.80.Ey
Opis:: Electric charges on randomly distributed impurities in semiconductors produce a spatially fluctuating potential. When the impurities are partially filled, their occupancy is not random but there appears a spatial correlation of the impurity charges appearing due to the inter-impurity Coulomb interactions. We show that when these interactions are taken into account then (i) the activation energy of the electron concentration, (ii) thermal emission kinetics, (iii) capture kinetics, (iv) persistent photoconductivity kinetics and (v) the electron mobility (in a steady state as well as during transients) in GaAlAs:Si can be explained in a consistent way. The energy diagram con cerning the DX center levels with respect to minima of the conduction band as well as the capture and emission barriers (including the effect of the alloy splitting) is constructed within an approach making use of the notion of the impurity self-screening.
Źródło:: Acta Physica Polonica A; 1991, 80, 3; 385-388
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Electrically Detected Magnetic Resonance
Autorzy:: Fedorych, O. M.
Wilamowski, Z.
Jantsch, W.
Sadowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/2038127.pdf
Data publikacji:: 2004-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 76.30.Pk
72.25.Rb
73.21.Fg
Opis:: We compare the results of electrically detected magnetic resonance in a 2D electron gas in Si/SiGe quantum wells with transport and magnetic resonance measurements on ferromagnetic Ga$\text{}_{1-x}$Mn$\text{}_{x}$As. The results lead us to the conclusion that observation of electrically detected magnetic resonance is possible only in the case of a slow spin relaxation, where the microwave resonant absorption leads to a noticeable change of spin magnetization.
Źródło:: Acta Physica Polonica A; 2004, 105, 6; 591-598
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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