Autor: Ušák, E. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Structural and Magnetic Properties of Nano-Sized NiZn Ferrites
Autorzy:: Ušák, E.
Šoka, M.
Ušáková, M.
Dobročka, E.
Powiązania:: https://bibliotekanauki.pl/articles/1366899.pdf
Data publikacji:: 2014-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.50.Gg
75.50.Tt
61.46.Df
61.05.C-
75.30.Cr
75.75.-c
Opis:: Structural and magnetic properties (such as e.g. size of crystallites, lattice parameter, magnetic susceptibility, Curie temperature, etc.) of nano-sized $Ni_{0.33}Zn_{0.67}Fe_{2}O_{4}$ ferrites have been studied. The obtained results demonstrated that the sintering temperature is an efficient and simple tool for controlling the size of crystallite particles, thus affecting the resulting magnetic properties. Straightforward relationship between the sintering temperature and the size of crystallites was found, meanwhile no other crystalline phases than the spinel one were detected by two independent analytic methods.
Źródło:: Acta Physica Polonica A; 2014, 126, 1; 68-69
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Magnetic Properties of $Ni_{0.3}Zn_{0.7}Fe_2O_4$ Ferrites with Iron Ions Partly Substituted by Europium
Autorzy:: Ušák, E.
Ušáková, M.
Šoka, M.
Vašut, D.
Powiązania:: https://bibliotekanauki.pl/articles/1398263.pdf
Data publikacji:: 2017-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.50.Gg
75.30.-m
Opis:: This work is devoted to the study of the impact of the substitution of iron by Eu on the properties of magnetically soft $Ni_{0.3}Zn_{0.7}Eu_{x}Fe_{2-x}O_4$ ferrites aimed at enhancement of the knowledge related to the behavior of such materials in dependence on the amount of iron substitution. Our latest studies focused on the materials having similar chemical composition gave a hint of some possible approaches to manage the resulting magnetic properties in a precisely controlled way by the combination of several factors; choice of initial chemical composition of non-substituted ferrite, selection of substituted and substituting element, variations of final chemical composition, modifications of fabrication technology (sintering temperature and time), etc.
Źródło:: Acta Physica Polonica A; 2017, 131, 4; 717-719
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Magnetic Properties of Yttrium-Substituted NiZn Ferrites
Autorzy:: Jančárik, V.
Ušák, E.
Šoka, M.
Ušáková, M.
Powiązania:: https://bibliotekanauki.pl/articles/1367108.pdf
Data publikacji:: 2014-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.50.Gg
75.30.Cr
75.60.-d
74.62.Dh
Opis:: Polycrystalline NiZn ferrite doped with a small amount of $Y^{3+}$ ions and having the composition of $Ni_{0.42}Zn_{0.58}Y_{x}Fe_{2-x}O_{4}$, where x=0.00, 0.01, 0.02, 0.04, 0.06, 0.08 and 0.10, was analyzed. Specimens were prepared by the ceramic method. Thermo-magnetic analysis and evaluation of hysteresis loops parameters were chosen as main examination methods in this study. Various parameters, such as Curie temperature $T_{C}$, coercive field $H_{c}$, remanent magnetic flux density $B_{r}$, hysteresis loop area and amplitude/initial permeability were studied at low frequencies.
Źródło:: Acta Physica Polonica A; 2014, 126, 1; 90-91
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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