Wszystkie pola: Jankowska-Kisielińska, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Inelastic Neutron Scattering in Sendust Alloy in 8-295 K Temperature Range
Autorzy:: Świderska, K.
Jankowska-Kisielińska, J.
Dobrzyński, L.
Powiązania:: https://bibliotekanauki.pl/articles/1419612.pdf
Data publikacji:: 2012-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.05.F-
75.30.Fv
75.40.-s
75.50.Lk
Opis:: The effects concerning magnetic and nuclear excitations in a single crystal of Sendust alloy (73.5 at.% Fe, 9.5 at.% Al, 17 at.% Si) are discussed. The excitations have been investigated by means of elastic and inelastic neutron scattering with the use of triple axis and small angle spectrometer. A few potential causes of spin wave damping in Sendust, like interactions of excitations or small-size precipitations of different compositions or directions of magnetization were disproved. It is suggested that one- and two-phonon scattering can explain observed strong increase of incoherent inelastic scattering with temperature.
Źródło:: Acta Physica Polonica A; 2012, 122, 2; 400-404
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Structure and Short Range Order of Two Phases in the Single Domain $Mn_{0.75}Cu_{0.25}$ Alloy after Spinodal Decomposition
Autorzy:: Jankowska-Kisielińska, J.
Świderska, K.
Mikke, K.
Powiązania:: https://bibliotekanauki.pl/articles/1538297.pdf
Data publikacji:: 2010-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.05.F-
75.30.Fv
75.40.-s
75.50.Lk
Opis:: The aim of the present paper was to identify the atomic and magnetic structure and short-range order of the two phases present in the $Mn_{0.75}Cu_{0.25}$ alloy after decomposition and plastic deformation. The sample was investigated by elastic neutron scattering at small-angle and 3-axes spectrometers. We have confirmed the decomposition of the alloy into two types of regions with manganese concentration increased and decreased as compared with the mean value. The crystal lattice in regions of both types is tetragonal (pseudo FCT) below $T_{N}$ but degree of tetragonal distortion is different. The long range antiferromagnetic order is present only in the regions of bigger distortion and higher Mn concentration. In the regions of lower Mn content and smaller distortion there is a short range ordering of complex magnetic and atomic character.
Źródło:: Acta Physica Polonica A; 2010, 117, 4; 582-585
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Diffuse Neutron Scattering in the $Mn_{0.4}Cu_{0.6}$ Alloy
Autorzy:: Jankowska-Kisielińska, J.
Mikke, K.
Fijał-Kirejczyk, I.
Powiązania:: https://bibliotekanauki.pl/articles/1813173.pdf
Data publikacji:: 2008-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.05.F-
75.30.Fv
75.40.-s
75.50.Lk
Opis:: The diffuse neutron scattering in the $Mn_{0.4}Cu_{0.6}$ alloy was measured in the temperature range 15-390K at the 3-axis neutron spectrometer at MARIA reactor in Świerk. The broad maxima of the neutron intensity were observed in the surrounding of the (0.5, 1, 0) reciprocal lattice point and other symmetry related points. The effect is similar to that observed in Mn-Cu alloys with lower Mn content at room temperature. Our results are in agreement with the earlier finding that the maxima of the short-range order incommensurate spin density wave scattering are placed at the (0.5±δ, 1, 0) reciprocal lattice point with a linear dependence of δ on the Mn concentration. In addition, some commensurate antiferromagnetic short-range order was found.
Źródło:: Acta Physica Polonica A; 2008, 113, 4; 1171-1178
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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