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Wyświetlanie 1-3 z 3
Tytuł:
ESR of Gd(Al$\text{}_{1-x}$M$\text{}_{x}$)$\text{}_{2}$; M = Ge, Sb Laves Phase Compounds
Autorzy:
Jarosz, J.
Powiązania:
https://bibliotekanauki.pl/articles/1964635.pdf
Data publikacji:
1997-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
76.30.Kg
Opis:
ESR measurements for Gd(Al$\text{}_{1 -x}$Ge$\text{}_{x}$) and Gd(Al$\text{}_{1-x}$Sb$\text{}_{x}$) pseudobinary systems with x ≤ 0.15 are presented. In all investigated compounds a marked change in thermal broadening of the line width was observed in temperature lower than 300 K. Using obtained results the bottleneck parameter was calculated as a function of concentration x.
Źródło:
Acta Physica Polonica A; 1997, 92, 2; 339-341
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charge Carrier Generation Caused by X-Rays in Organometallic Materials
Autorzy:
Godlewski, J.
Signerski, R.
Jarosz, G.
Stizza, S.
Berrettoni, M.
Powiązania:
https://bibliotekanauki.pl/articles/2011031.pdf
Data publikacji:
1999-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
72.40.+w
Opis:
Organometallic compounds play an exceptional role among organic compounds. Due to their structure a number of these compounds demonstrate interesting properties in various phenomena. Organometallic compounds show special properties in the case of X-ray absorption owing to considerable differences between the absorption coefficients of metals and light elements. The analysis of processes of charge carrier generation as a result of X-ray absorption in chosen organometallic compounds is the subject of this paper. Spectral dependences of charge carrier photogeneration efficiency around the Cu K-edge in copper phthalocyanine and copper acetylacetoniane have been specially considered. It has been observed that the photocurrent spectrum in these materials follows the absorption spectrum but mutual relation is not directly proportional. Experimental results connected with current-voltage and current-intensity characteristics have been analysed, as well. The obtained relationships have been compared with adequate results connected with charge carrier photogeneration in visible area and UV in organic materials. It has been observed that the X-ray photogeneration of charge carriers in the examined range of energy differs from the mechanisms of charge carrier generation in visible area and UV. The basic differences arise from the participation of secondary electrons, which are generated due to Auger electrons, Compton effect, and metal fluorescence. The process of charge carrier generation as a result of X-rays absorption is characterized by strong recombination of charge carriers in channels in which charge carriers are generated by high energetic secondary electrons.
Źródło:
Acta Physica Polonica A; 1999, 96, 2; 295-301
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Observation of Pr$\text{}^{+}$ Ions in Paul Trap
Autorzy:
Dembczyński, J.
Stefańska, D.
Szawioła, G.
Furmann, B.
Stachowska, E.
Jarosz, A.
Arcimowicz, B.
Buczek, A.
Koczorowski, W.
Krzykowski, A.
Kajoch, A.
Elantkowska, M.
Ruczkowski, J.
Kowalkiewicz, W.
Powiązania:
https://bibliotekanauki.pl/articles/1967853.pdf
Data publikacji:
1997-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.80.Pj
Opis:
The first observation of Pr$\text{}^{+}$ ions stored in a Paul trap is reported. Initially the ions were observed by the electronic detection method, and further the laser induced fluorescence, following resonance absorption at a certain optical transition in Pr$\text{}^{+}$ ion, which is excited from the ground state, was recorded. Moreover, fluorescence signal following the excitation from a low-lying metastable state could be detected. The Paul trap system and some other parts of the experimental setup were constructed within the frame of this work and thus are briefly described in the present contribution.
Źródło:
Acta Physica Polonica A; 1997, 92, 3; 517-526
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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