Temat: 71.20.Be - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Volume Effect on the Magnetism of $Fe_{3-x}Cr_{x}Al$
Autorzy:: Go, A.
Pugaczowa-Michalska, M.
Dobrzyński, L.
Powiązania:: https://bibliotekanauki.pl/articles/1810453.pdf
Data publikacji:: 2009-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.20.Be
Opis:: Magnetic properties of $Fe_{3-x}Cr_{x}Al$ alloys depend strongly on the unit cell volume. Purpose of this work is to investigate the dependence of the total and local magnetic moments on the lattice constant using the self-consistent spin-polarised TB-LMTO method.
Źródło:: Acta Physica Polonica A; 2009, 115, 1; 191-193
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Electronic Structure and Ordering Degree in $Fe_3Al$ Alloy Doped with Transition Metals. Ab Initio Study
Autorzy:: Go, A.
Dobrzyński, L.
Powiązania:: https://bibliotekanauki.pl/articles/1427323.pdf
Data publikacji:: 2012-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.20.Be
75.50.Bb
Opis:: $Fe_3Al$ alloy crystallizes in $DO_3$-type structure. In the perfectly ordered alloy there are two nonequivalent sublattices (A,C) and B, which are occupied by Fe atoms, whereas all D sites are taken by metalloid. Such perfect ordering is, however, difficult to achieve experimentally, and some disorder between B-D as well as (A,C)-D sublattices typically appears in real samples. This disorder modifies strongly electronic structure and magnetic properties. The aim of this contribution is to investigate total energy dependence of atomic exchange of sites between B-D and (A,C)-D positions in $Fe_3Al$ as well as in alloys doped with transition metals using ab-initio technique. Furthermore, dependence of electronic and magnetic properties of $Fe_3Al$-based alloys on the crystallographic ordering is thoroughly investigated.
Źródło:: Acta Physica Polonica A; 2012, 121, 5-6; 1124-1127
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Reconstruction of the Exchange Integrals Map of ScFe₄Al₈ Magnetic Structure
Autorzy:: Rećko, K.
Dobrzyński, L.
Waliszewski, J.
Szymański, K.
Powiązania:: https://bibliotekanauki.pl/articles/1386376.pdf
Data publikacji:: 2015-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.05.fm
71.20.Be
71.70.Gm
75.10.Dg
75.30.Et
Opis:: The influence of the dipolar as well as crystal field interaction as the main reasons of the noncollinearity and incommensurability of the 3d-3d-3p alloy belonging to ThMn₁₂ family is investigated. Available data on the single crystal neutron scattering experiments for ScFe₄Al₈ compound are discussed. The values and directions of the spin ordering found by magnetic diffraction are compared to that one derived from ground state configurations obtained by a simulated annealing algorithm.
Źródło:: Acta Physica Polonica A; 2015, 127, 2; 424-426
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Effect of Annealing in Multicomponent bcc Alloys
Autorzy:: Szymański, K.
Perzyńska, K.
Satuła, D.
Dobrzyński, L.
Zaleski, P.
Waliszewski, J.
Rećko, K.
Biernacka, M.
Olszewski, W.
Powiązania:: https://bibliotekanauki.pl/articles/1506614.pdf
Data publikacji:: 2011-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.20.Be
76.80.+y
61.05.Qr
61.50.Ks
81.30.Hd
Opis:: Multicomponent single phase alloys were synthesized according to the idea of iron-average atom system. X-ray diffraction shows formation of bcc phase and traces of unidentified phase. Mössbauer spectra indicate presence of two components with different hyperfine magnetic field distributions. The high field component corresponds to the majority ferromagnetic phase. Few per cent of iron builds low field component. The dominant effect of annealing consists in an increase of the low field component.
Źródło:: Acta Physica Polonica A; 2011, 119, 1; 62-64
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja