Podrobnosti záznamu

Název
    Magnetic and mössbauer properties of troilite extract from Nantan iron meteorite
Autor
    Čuda, J.
    Kohout, Tomáš
    Tuček, J.
    Zbořil, R.
Konference
    Mössbauer Spectroscopy in Materials Science 2012 (11.06.2012-15.06.2012 : Olomouc, Česká republika)
Jazyk
    anglicky
Typ dokumentu
    abstrakt
Zdrojový dokument - monografie
    Mössbauer spectroscopy in materials science
Strany
    S. 75-75
Poznámky
    Rozsah: 1 s.
Předmětová kategorie
    daubreelite
    magnetism
    Mössbauer
    Nantan
    troilite
Klíčové slovo
    Extract
    Iron
    Magnetic
    Meteorite
    Mössbauer
    Nantan
    Properties
    Troilite
Abstrakt (anglicky)
   The Nantan meteorite impacted in Nantan County, Guangxi, China and it is a nickel-iron meteorite with an average composition of 92.35% iron and 6.96% nickel and is classified as a IIICD coarse octahedrite. In our study, we focused our attention on low-temperature magnetic evolution of troilite extract from the Nantan IIICD iron meteorite. Detailed profile analysis of the field-cooled (FC) induce magnetization (10 mT) has shown a similar profile to the daubreelite (FeCr2S4) mineral [Kohout at al. 2007] in the temperature range running from 60 to 170 K. The RTSIRM and FC induced magnetization does not produce any significant change related to troilite Kohout at al. [2007], Cuda at al. [2011] as it was observed by Hoffmann et al. [2011]. In order to quantify a magnetic response of the troilite extract from the Nantan IIICD iron meteorite, the hysteresis loops at 5 K and room temperature were measured in the external magnetic field up to 7 T.
   Hysteresis parameters of the coercive field (Bc) and saturation magnetization (MS) are about 55 mT and 2 Am2/kg at 5 K, respectively. At room temperature, these parameters are lower (Bc  14 mT; MS  1.5 Am2/kg). Furthermore, the extract was also investigated by Mössbauer spectroscopy at various temperatures.
Přispěvatel
    AV ČR Brno, Geologický ústav
Kód přispěvatele
    AV ČR, GLÚ
Zdrojový formát
    U
Datum importu
    19. 3. 2014