Autor: Wasik, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Hydrostatic Pressure Study of MBE CdMnTe Doped with Bromine
Autorzy:: Szczytko, J.
Wasik, D.
Przybytek, J.
Baj, M.
Waag, A.
Powiązania:: https://bibliotekanauki.pl/articles/1934026.pdf
Data publikacji:: 1995-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.55.Gs
73.61.Ga
Opis:: We present Hall effect and resistivity measurements as a function of pressure performed on MBE-grown Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te (with x = 0.14) layer (1 μm) doped with bromine. The experimental data were analysed using positive and negative U model of the Br centres. We found that both models could reproduce the experimental points, but in the case of positive U model - only under assumption that the sample was completely uncompensated.
Źródło:: Acta Physica Polonica A; 1995, 88, 5; 933-936
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Spatial Correlations of Donor Charges in MBE CdTe
Autorzy:: Suski, T.
Wiśniewski, P.
Litwin-Staszewska, E.
Wasik, D.
Przybytek, J.
Baj, M.
Karczewski, G.
Wojtowicz, T.
Zakrzewski, A.
Kossut, J.
Powiązania:: https://bibliotekanauki.pl/articles/1934021.pdf
Data publikacji:: 1995-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 72.80.Ey
71.55.Gs
Opis:: We present experimental evidence that at high pressures indium donors in CdTe localize electrons in spatially correlated manner. We have studied Hall mobility, μ$\text{}_{H}$, as a function of electron concentration, n$\text{}_{H}$, at T=77 K. Changes of n$\text{}_{H}$ have been achieved by two methods. High pressure freeze-out of electrons onto localized states of In-donors leads to the mobility enhancement with respect to the situation when n$\text{}_{H}$ has been modified by means of a subsequent annealing of the sample. As a result, depending on the degree of spatial correlations in the impurity charges arrangement, different values of μ$\text{}_{H}$ correspond to the same value of n$\text{}_{H}$. The variation of mobility with electron concentration suggests that the localized state of In-donor represents likely negatively charged DX state.
Źródło:: Acta Physica Polonica A; 1995, 88, 5; 929-932
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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