Autor: Stoch, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Structural and Mössbauer effect studies of Dy(Fe0.4Co0.6-x Alx)2 intermetallics
Autorzy:: Stoch, P.
Pszczoła, J.
Suwalski, J.
Pańta, A.
Powiązania:: https://bibliotekanauki.pl/articles/148809.pdf
Data publikacji:: 2003
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: crystal structure
hyperfine interactions
Mössbauer spectroscopy
rare earth
Slater-Pauling curve
transition
Opis:: The magnetic hyperfine fields observed at the 57Fe nuclei (77 K) in the Dy(Mn1-xFex)2 and Dy(Fe1-xCox)2 intermetallics form a Slater-Pauling curve. In order to study the effect of cobalt atoms on crystal structure and hyperfine interactions, the new Co/Al substituted series Dy(Fe0.4Co0.6-xAlx)2 was prepared and data of X-ray powder analysis are presented (300 K). From the 57Fe Mössbauer measurements at 77 K the hyperfine parameters were obtained. The magnetic hyperfine fields form a branch of the Slater-Pauling curve.
Źródło:: Nukleonika; 2003, 48,suppl.1; 75-77
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Mössbauer effect studies of Dy(Fe0.7-xNixCo0.3)2 intermetallics
Autorzy:: Jabłońska, A.
Suwalski, J.
Pszczoła, J.
Guzdek, P.
Stoch, P.
Pańta, A.
Powiązania:: https://bibliotekanauki.pl/articles/147231.pdf
Data publikacji:: 2004
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: intermetallics
crystal structure
57Fe Mössbauer effect
hyperfine interactions
Slater-Pauling curve
band structure
Opis:: Abstract A consequence of the Fe/Ni substitution in the series of Dy(Fe0.7 xNixCo0.3)2 was studied in the presented paper. The synthesis and X-ray analysis (300 K) of the Dy(Fe0.7 xNixCo0.3)2 system were performed. The cubic, MgCu2-type, Fd3m crystal structure was evidenced for this solid solution. 57Fe Mössbauer effect measurements for the system were carried out at 77 K. The obtained crystallographic lattice parameters and the hyperfine interaction data are presented. The magnetic hyperfine field values form a separate branch of the Slater-Pauling curve situated above the branch corresponding to the Dy(Fe1 xCox)2 intermetallics.
Źródło:: Nukleonika; 2004, 49,suppl.3; 85-88
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Hyperfine interactions in Tb0.27-xYxDy0.73Fe2 compounds at 295 K
Autorzy:: Krawczyk, A.
Zwoźniak, A.
Guzdek, P.
Stoch, P.
Zachariasz, P.
Suwalski, J.
Pszczoła, J.
Powiązania:: https://bibliotekanauki.pl/articles/147818.pdf
Data publikacji:: 2013
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: hyperfine interaction
intermetallics
Laves phase
Mössbauer effect
Opis:: This paper concerns the synthesis of yttrium-dilute Tb0.27-xYxDy0.73Fe2 intermetallic series with a borderline compound Tb0.27Dy0.73Fe2 known as Terfenol-D by arc melting, XRD analysis and 57Fe Mössbauer effect studies at 295 K. XRD analysis (295 K) shows that all samples crystallize in a cubic, Fd3m, MgCu2-type structure. The lattice parameter increases along with yttrium content. Mössbauer effect spectra for the Tb0.27-xYxDy0.73Fe2 series collected at 295 K consist of two subspectra due to easy direction of magnetization <111>. Hyperfine interaction parameters: isomer shift, magnetic hyperfine field and a quadrupole splitting were obtained from the fitting procedure of the spectra.
Źródło:: Nukleonika; 2013, 58, 1; 133-135
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Hyperfine interactions in Dy(Co0.4-xNixFe0.6)2 compounds at 295 K
Autorzy:: Zwoźniak, A.
Krawczyk, A.
Stoch, P.
Guzdek, P.
Zachariasz, P.
Suwalski, J.
Pszczoła, J.
Powiązania:: https://bibliotekanauki.pl/articles/148005.pdf
Data publikacji:: 2013
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: hyperfine interaction
intermetallics
Mössbauer effect
Slater-Pauling dependence
Opis:: 57Fe Mössbauer effect studies were performed for the cubic C15, Fd3m, MgCu2-type Dy(Co0.4-xNixFe0.6)2 intermetallics. Hyperfine interaction parameters : isomer shift, magnetic hyperfine field and quadrupole interaction parameter were obtained from the fitting procedure of the collected 57Fe Mössbauer effect spectra. As a result of Co/Ni substitution, a Slater-Pauling type curve for the average magnetic hyperfine field vs. Ni content in the Dy(Co0.4-xNixFe0.6)2 series is observed.
Źródło:: Nukleonika; 2013, 58, 1; 179-181
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Mössbauer effect studies of Dy(Fe0.4-xNixCo0.6)2
Autorzy:: Jabłońska, A.
Suwalski, J.
Stoch, P.
Pszczoła, J.
Guzdek, P.
Szamański, P.
Pańta, A.
Powiązania:: https://bibliotekanauki.pl/articles/148209.pdf
Data publikacji:: 2007
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: crystal structure
Mössbauer effect
hyperfine interaction
Slater-Pauling curve
band structure
Opis:: A consequence of the Fe/Ni substitution in the Dy(Fe0.4Co0.6)2 compound was studied in the present paper. For this purpose the synthesis and X-ray analysis (295 K) of the Dy(Fe0.4 xNixCo0.6)2 series were performed. The cubic, MgCu2-type, Fd3m crystal structure was observed across the series. 57Fe Mössbauer effect spectra for the series were collected at 77 K. The obtained crystallographic data and the hyperfine interaction parameters are presented. The magnetic hyperfine fields form a separate branch of the Slater-Pauling curve known for the Dy(Mn1 xFex)2 and Dy(Fe1 xCox)2 series. The data are qualitatively related to the Stoner model.
Źródło:: Nukleonika; 2007, 52, supl. 1; 55-58
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 6.

Tytuł:: Mössbauer effect studies of Dy(Mn0.4-xAlxFe0.6)2 intermetallics
Autorzy:: Stoch, P.
Pszczoła, J.
Guzdek, P.
Jabłońska, A.
Suwalski, J.
Dąbrowski, L.
Pańta, A.
Powiązania:: https://bibliotekanauki.pl/articles/147206.pdf
Data publikacji:: 2004
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: intermetallics
crystal structure
57Fe Mössbauer effect
hyperfine interactions
Slater-Pauling curve
Opis:: Both 3d subbands in the Dy(Mn0.4Fe0.6)2 compound are filled up only partially with 3d electrons. So, it was interesting to study the consequence of Mn/Al substitution in the Dy(Mn0.4 xAlxFe0.6)2 series. The cubic, MgCu2-type, Fd3m crystal structure was observed across the series. However, for x = 0.35 and 0.40 a stoichiometric admixture of the hexagonal, MgZn2-type, P63/mmc structure was evidenced. Mössbauer effect measurements at 57Fe nuclei were performed at 77 K. The magnetic hyperfine field decreases vs. the aluminium content x. This dependence is related to the possible 3d-electron band structure.
Źródło:: Nukleonika; 2004, 49,suppl.3; 23-25
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

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