Autor: Jasek, B. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Magnetic Properties of γ-Fe₂O₃ Nanopowder Synthesized by Atmospheric Microwave Torch Dischargie. Acta Physica Polonica A 122, 9 (2012), ERRATUM
Autorzy:: David, B.
Schneeweiss, O.
Šantavá, E.
Jašek, O.
Powiązania:: https://bibliotekanauki.pl/articles/1398694.pdf
Data publikacji:: 2016-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 99.10.Cd
Opis:: 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 taken at 5 K. The presence of pure $Fe_3 O_4$ in the nanopowder was excluded. The Mössbauer spectrum taken at 5 K exhibited six times larger total spectrum area than the Mössbauer spectrum taken at 293 K. Zero field cooled/field cooled curves measured down to 4 K in the magnetic field of 7.9 kA/m are reported.
Źródło:: Acta Physica Polonica A; 2016, 129, 1; 168
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Magnetic Properties of $γ-Fe_2O_3$ Nanopowder Synthesized by Atmospheric Microwave Torch Discharge
Autorzy:: David, B.
Schneeweiss, O.
Šantavá, E.
Jašek, O.
Powiązania:: https://bibliotekanauki.pl/articles/1419658.pdf
Data publikacji:: 2012-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 52.50.Sw
81.07.Wx
76.80.+y
Opis:: A nanopowder containing $γ-Fe_2O_3$ particles was synthesized by adding a gas mixture of $H_2//Fe(CO)_5$ into a microwave torch discharge at 1 bar. The presence of $γ-Fe_2O_3$ phase was confirmed by powder X-ray diffraction (mean crystallite size $d_{XRD}$=24 nm). The dominating characteristic sextets of $γ-Fe_2O_3$ were identified in the Mössbauer spectrum taken at 5 K. The presence of pure $Fe_3O_4$ in the nanopowder was excluded. The Mössbauer spectrum taken at 5 K exhibited six times larger total spectrum area than the Mössbauer spectrum taken at 293 K. Zero field cooled/field cooled curves measured down to 4 K in the magnetic field of 7.9 kA/m are reported.
Źródło:: Acta Physica Polonica A; 2012, 122, 1; 9-11
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Nanocrystalline α-Fe Layer Examined by Mössbauer Spectrometry
Autorzy:: David, B.
Schneeweiss, O.
Pizúrová, N.
Rek, A.
Kudrle, V.
Jašek, O.
Powiązania:: https://bibliotekanauki.pl/articles/1381817.pdf
Data publikacji:: 2014-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 52.75.Hn
73.63.Bd
76.80.Pj
Opis:: A few micrometers thick nanocrystalline α-Fe layer with the mean crystallite size $d_{XRD}$=14 nm was deposited in low-pressure microwave plasma, using $Fe(CO)_{5}$ vapour. Its nanocrystalline character was proved on its surface under SEM (surface was formed of deposited nanoparticles) and in its volume using TEM (deposited nanoparticles were stacked up, creating columns). No significant iron oxide phases were observed in the transmission $\text{}^{57}Fe$ Mössbauer spectrum measured at 5 K nor in the surface-sensitive $\text{}^{57}Fe$ conversion electron Mössbauer spectrum measured at 293 K.
Źródło:: Acta Physica Polonica A; 2014, 126, 1; 94-95
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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