Autor: Hańć, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The Mössbauer and X-Ray Studies οf the Spinel Ferrites $Cu_{0.5}Fe_{0.5}Cr_2Se_4$ and $Cu_{0.2}Fe_{0.8}Cr_2Se_4$ Prepared by the Ceramic Method
Autorzy:: Maciążek, E.
Hanc, A.
Sitko, R.
Zawisza, B.
Jendrzejewska, I.
Mrzigod, J.
Powiązania:: https://bibliotekanauki.pl/articles/1811603.pdf
Data publikacji:: 2008-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.05.cp
61.66.Fn
82.80.Ej
75.50.Gg
Opis:: Seleno-spinels with nominal chemical composition $Cu_{0.5}Fe_{0.5}Cr_2Se_4$ and $Cu_{0.2}Fe_{0.8}Cr_2Se_4$ were prepared as polycrystalline samples using ceramic method. The assumed composition was verified by wavelength-dispersive X-ray fluorescence spectrometry. The X-ray analysis was carried out in order to make phase analysis and to compare its results with those obtained with the Mössbauer spectroscopy.
Źródło:: Acta Physica Polonica A; 2008, 114, 6; 1599-1603
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: The Mössbauer Spectroscopy and Analytical Investigations οf the Polycrystalline Compounds with General Formula $Zn_xSn_yCr_zSe_4$
Autorzy:: Jendrzejewska, I.
Hanc, A.
Zajdel, P.
Kita, A.
Goryczka, T.
Maciążek, E.
Mrzigod, J.
Powiązania:: https://bibliotekanauki.pl/articles/1811602.pdf
Data publikacji:: 2008-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.05.cp
61.66.Fn
75.50.Ee
82.80.Ej
Opis:: We present combined X-ray powder diffraction and Mössbauer $\text{}^{119}Sn$ studies of polycrystalline compounds with a general formula $Zn_xSn_yCr_zSe_4$ (where x+y+z ≈3). The obtained single-phase compounds crystallize in the spinel cubic structure - Fd3m. Tin ions are found to occupy both tetrahedral and octahedral sublattices. On the contrary to the strong tetrahedral site preference energy of Sn, the presented data strongly suggest that the increase in lattice parameters with Sn doping is caused by Sn ions that incorporated into octahedral positions. A quadrupole and isomer shifts of $\text{}^{119}Sn$ in $(SnSe_4)^{6-}$ and $(SnSe_6)^{4-}$ are also reported.
Źródło:: Acta Physica Polonica A; 2008, 114, 6; 1591-1597
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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