Autor: Dzubinska, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Low Temperature Magnetic Ordering in NdAgAl₃
Autorzy:: Nallamuthu, S.
Džubinská, A.
Reiffers, M.
Nagalakshmi, R.
Powiązania:: https://bibliotekanauki.pl/articles/1032835.pdf
Data publikacji:: 2017-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.70.Ch
65.40.Ba
Opis:: We present the detailed study of magnetic, thermodynamic, and transport properties of polycrystalline NdAgAl₃. The compound crystallizes in BaNiSn₃-type tetragonal structure with the space group I4mm. Magnetic, heat capacity and transport measurements indicate the possible antiferromagnetic nature of the ordering below 2 K. The compound shows the Schottky anomaly in heat capacity data. Magnetoresistance is negative at low temperature.
Źródło:: Acta Physica Polonica A; 2017, 131, 4; 1015-1017
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Magnetic and Heat Capacity Study of the new $Gd_{1-x}Ce_xNi_5$ Series
Autorzy:: Dzubinska, A.
Reiffers, M.
Espeso, J.
Rodríguez Fernández, J.
Powiązania:: https://bibliotekanauki.pl/articles/1398287.pdf
Data publikacji:: 2017-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.27.+a
75.30.-m
75.30.Mb
Opis:: We have prepared a new system of $Gd_{1-x}Ce_xNi_5$ polycrystalline samples with concentrations x =0, 0.2, 0.5, and 0.8 in order to study the influence of different rare-earths substitutions on the ground state connected with spin fluctuations. GdNi₅ is a ferromagnetic compound with $T_{C}=31.8 K$ and CeNi₅ is a well-known spin fluctuation compound without magnetic ordering down to the lowest temperatures. X-ray diffraction study confirms the hexagonal crystal structure and the single phase samples. Magnetic properties (M(T),M(B)) show that an increasing content of Ce depresses the transition temperature, $T_{C}$, down to 4.9 K for x=0.8. The heat capacity measurements confirmed these results.
Źródło:: Acta Physica Polonica A; 2017, 131, 4; 997-999
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Characterization of New U-Ni-X₂ Splats and Study of their Physical Properties
Autorzy:: Molčanová, Z.
Mihalik, M.
Reiffers, M.
Džubinská, A.
Huráková, M.
Kavečanský, V.
Paukov, M.
Havela, L.
Powiązania:: https://bibliotekanauki.pl/articles/1032182.pdf
Data publikacji:: 2017-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.82.Bg
75.50.Kj
75.30.-m
72.15.-v
Opis:: We explored the crystal structure, magnetic, and transport properties of UNiX₂ (X = Ge, Si) materials, which were prepared by a conventional metallurgical technique and by rapid solidification - splat cooling. The UNiSi₂ splat is mostly single phase, containing only small traces of a minority phase. Magnetic and electrical properties of the splat resemble properties of samples, which were prepared by conventional methods, exhibiting a ferromagnetic transition at about 91 K and similar temperature dependence of resistivity. The coercive field of μ₀H_c=4.25 T is much enhanced due to the magnetic anisotropy introduced by the sample preparation technique. The Barkhausen jumps were observed on the hysteresis loop. Magnetization of the sample does not saturate in fields up to μ₀H=9 T. The phase structure of UNiGe₂ splat is not completely solved and will be subject of our study in future. Our preliminary results indicate the presence of completely new phase with tetragonal crystal structure and antiferromagnetic ordering below 54 K.
Źródło:: Acta Physica Polonica A; 2017, 131, 4; 994-996
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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