Počet záznamů: 1  

Magnetic properties of La.sub.1-x./sub.Sr.sub.x./sub.MnO.sub.3./sub. nanoparticles prepared in a molten salt

  1. 1.
    0435362 - FZÚ 2015 RIV US eng J - Článek v odborném periodiku
    Kačenka, Michal - Kaman, Ondřej - Jirák, Zdeněk - Maryško, Miroslav - Žvátora, Pavel - Vratislav, S. - Lukeš, I.
    Magnetic properties of La1-xSrxMnO3 nanoparticles prepared in a molten salt.
    Journal of Applied Physics. Roč. 115, č. 17 (2014), "17B525-1"-"17B525-3". ISSN 0021-8979. E-ISSN 1089-7550
    Grant CEP: GA ČR(CZ) GAP108/11/0807
    Institucionální podpora: RVO:68378271
    Klíčová slova: magnetic properties * molten salt * neutron diffraction
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 2.183, rok: 2014

    Single phase La1-xSrxMnO3 nanoparticles (x=0.18 - 0.37)are prepared by a novel way in molten NaNO2 at 500°C. Their rhombohedral perovskite structure is confirmed by XRD patterns and exact chemical composition is determined by XRF (X-ray fluorescence) spectroscopy. The mean size of the as-prepared crystallites is of about 50 nm, the grains are rather separated and do not form sintering bridges that were typical for products synthesized by sol-gel routes followed by annealing. On the other hand, the synthesized nanoparticles exhibit rather low magnetization and decreased Curie temperature. Their neutron diffraction study indicates a complex magnetic ordering together with anomalously high atomic displacements factors that decreased considerably after annealing the samples at elevated temperature.
    Trvalý link: http://hdl.handle.net/11104/0239243

     
     
Počet záznamů: 1  

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