Autor: Wachowiak, H. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Modification of Exchange Coupling in Fe/Nb/Fe/Pd Layered Structures using Hydrogen
Autorzy:: Wachowiak, M.
Marczyńska, A.
Dawczak-Dębicki, H.
Pugaczowa-Michalska, M.
Pacanowski, S.
Majchrzycki, Ł.
Smardz, L.
Powiązania:: https://bibliotekanauki.pl/articles/1030744.pdf
Data publikacji:: 2018-03
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.70.-i
68.55.-a
Opis:: Fe/Nb/Fe trilayers were prepared at room temperature using UHV magnetron sputtering. The interlayer exchange coupling energy was determined from a shift of the minor hysteresis loop from the origin. Results showed clear antiferromagnetic (AF) coupling maxima near ım6 and 9 monolayers of Nb spacer. Calculations of the interlayer exchange coupling energy were carried out using ab-initio method with localized spin density approximations of exchange-correlation potential. The experimental results were in good agreement with ab-initio calculations. Furthermore, the position of the AF peaks and coupling energy values could be modified using hydrogen.
Źródło:: Acta Physica Polonica A; 2018, 133, 3; 609-612
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Natural xidation of thin Fe films on V buffer layer
Autorzy:: Dawczak-Dębicki, H.
Marczyńska, A.
Rogowska, A.
Wachowiak, M.
Nowicki, M.
Pacanowski, S.
Jabłoński, B.
Kowalski, W.
Grembowski, J.
Czajka, R.
Smardz, L.
Powiązania:: https://bibliotekanauki.pl/articles/1055062.pdf
Data publikacji:: 2017-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.70.-i
68.55.-a
Opis:: We have studied oxidation kinetics of Fe thin film under atmospheric conditions using the fact that metallic iron is a ferromagnet but ultrathin natural iron oxides are approximately nonmagnetic at room temperature. As a consequence, oxidation is associated with a loss in total Fe magnetic moment. Results show that the sample with an initial Fe thickness equal to 10 nm oxidize relatively fast (time constant τ=0.05 day), whereby a constant amount of 2.5 nm of metal is transformed into oxides. For lower iron initial thickness (d_{i}=4 nm) the time constant for oxidation significantly increases reaching a value of 2 days. Furthermore, X-ray photoelectron spectroscopy studies performed after 144 days of oxidation revealed formation of hematite (α-Fe₂O₃) thin film on the metallic rest of iron.
Źródło:: Acta Physica Polonica A; 2017, 132, 4; 1272-1276
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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