Počet záznamů: 1
Magnetic properties of γ-Fe2O3 nanopowder synthesized by atmospheric microwave torch discharge
- 1.0386758 - ÚFM 2013 RIV PL eng J - Článek v odborném periodiku
David, Bohumil - Schneeweiss, Oldřich - Šantavá, Eva - Jašek, O.
Magnetic properties of γ-Fe2O3 nanopowder synthesized by atmospheric microwave torch discharge.
Acta Physica Polonica A. Roč. 122, č. 1 (2012), s. 9-11. ISSN 0587-4246. E-ISSN 1898-794X.
[Physics of Magnetism. Poznaň, 27.06.2011-01.07.2011]
Grant CEP: GA MŠMT(CZ) ED1.1.00/02.0068; GA MŠMT 1M0512; GA ČR GA106/08/1440; GA ČR GA202/08/0178
Výzkumný záměr: CEZ:AV0Z20410507; CEZ:AV0Z10100520
Klíčová slova: γ-Fe2O3 * nanopowder * microwave torch discharge * magnetic properties * Mössbauer spectroscopy
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus; BM - Fyzika pevných látek a magnetismus (FZU-D)
Impakt faktor: 0.531, rok: 2012
http://przyrbwn.icm.edu.pl/APP/PDF/122/a122z1p03.pdf
A nanopowder containing γ-Fe2O3 particles was synthesized by adding a gas mixture of H2/Fe(CO)5 into a microwave torch discharge at 1 bar. The presence of γ-Fe2O3 phase was confirmed by powder X-ray diffraction (mean crystallite size d_XRD = 24 nm). The dominating characteristic sextets of γ-Fe2O3 were identified in the Mössbauer spectrum (MS) taken at 5 K. The presence of pure Fe3O4 in the nanopowder was excluded. The MS spectrum taken at 5 K exhibited six times larger total spectrum area than the MS taken at 293 K. ZFC/FC curves measured down to 4 K in the magnetic field of 7.9 kA/m are reported
Trvalý link: http://hdl.handle.net/11104/0216458
Počet záznamů: 1