Podrobnosti záznamu

    Magnetic and mössbauer properties of troilite extract from Nantan iron meteorite
    Čuda, J.
    Kohout, Tomáš
    Tuček, J.
    Zbořil, R.
    Mössbauer Spectroscopy in Materials Science 2012 (11.06.2012-15.06.2012 : Olomouc, Česká republika)
Typ dokumentu
Zdrojový dokument - monografie
    Mössbauer spectroscopy in materials science
    S. 75-75
    Rozsah: 1 s.
Předmětová kategorie
Klíčové slovo
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.
    AV ČR Brno, Geologický ústav
Kód přispěvatele
    AV ČR, GLÚ
Zdrojový formát
Datum importu
    19. 3. 2014