- Tytuł:
- Magnetic Properties of Magnetite Formed by Biomineralization and Chemical Synthesis
- Autorzy:
-
Timko, M.
Džarová, A.
Kopčanský, P.
Závišová, V.
Koneracká, M.
Kováč, J.
Šprincová, A.
Vaclavíková, M.
Ivaničová, L.
Vávra, I. - Powiązania:
- https://bibliotekanauki.pl/articles/1813922.pdf
- Data publikacji:
- 2008-01
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.75.+a
47.65.Cb
87.83.+a - Opis:
- In this work, the magnetic properties of biologically produced magnetite (magnetosomes) by biomineralization process were compared to those of chemically synthesized $Fe_3O_4$. The coercivity of 185 Oe in magnetosomes is connected with the fact that the mean diameter is larger than critical size for transition from superparamagnetic to ferromagnetic behavior. A sharp magnetic transition at 105 K (Verwey transition) is clearly present in magnetosomes while in opposite, this transition is missing in $Fe_3O_4$.
- Źródło:
-
Acta Physica Polonica A; 2008, 113, 1; 573-576
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł