Autor: Giovannini, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Structural and physical properties of the new stannide Yb₃Pd₄Sn₁₃
Autorzy:: Gastaldo, F.
Giovannini, M.
Strydom, A.
Djoumessi, R.
Čurlík, I.
Reiffers, M.
Solokha, P.
Saccone, A.
Powiązania:: https://bibliotekanauki.pl/articles/1050753.pdf
Data publikacji:: 2017-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.27.+a
74.25.F-
74.10.+v
Opis:: Among the new discovered intermetallics in the Yb-Pd-Sn system, the cubic phase Yb₃Pd₄Sn₁₃, with a lattice parameter of 0.9743(5) nm, emerges as a new member of the R₃T₄Sn₁₃ family (R = rare earth element, T = transition metal) crystallizing in the Yb₃Rh₄Sn₁₃-structure type. The effective magnetic moment μ_{eff}=1.84 μ_{B}/Yb is strongly reduced. Moreover, measurements of magnetic properties, specific heat and resistivity indicate superconductivity below 2.4 K. This compound is found to exhibit a strongly enhanced electronic specific heat at low temperature from which we infer a possible low-lying magnetic phase transition or other source of magnetic entropy.
Źródło:: Acta Physica Polonica A; 2017, 131, 4; 1006-1008
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Crystal Structure and Magnetic Properties of new Eu-Pd-Sn Compounds
Autorzy:: Čurlík, I.
Gastaldo, F.
Giovannini, M.
Strydom, A.
Reiffers, M.
Powiązania:: https://bibliotekanauki.pl/articles/1032628.pdf
Data publikacji:: 2017-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.27.+a
75.30.Mb
75.30.-m
Opis:: We report on the synthesis, crystal structure determination, and magnetic susceptibility measurements of Eu₃Pd₂Sn₂, EuPd₂Sn₄, and EuPdSn₂. For all three compounds a divalent state of Eu ions was obtained from the fitting of the magnetic susceptibilities. At low temperatures Eu₃Pd₂Sn₂, EuPd₂Sn₄, and EuPdSn₂ order magnetically at 23, 12, and 13 K, respectively.
Źródło:: Acta Physica Polonica A; 2017, 131, 4; 1003-1005
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Strong Electronic Correlations in a New Yb-Based Compound: $YbCu_4Ni$
Autorzy:: Čurlik, I.
Reiffers, M.
Giovannini, M.
Gažo, E.
Šebek, J.
Šantavá, E.
Powiązania:: https://bibliotekanauki.pl/articles/1534605.pdf
Data publikacji:: 2010-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.27.+a
75.30.-m
75.30.Mb
Opis:: Heat capacity measurements performed on the new ternary compound $YbCu_4Ni$ indicate for this compound strong electronic correlations with possible antiferromagnetic phase transition below 0.5 K. Susceptibility and magnetisation measurements above 2 K show no magnetic ordering.
Źródło:: Acta Physica Polonica A; 2010, 118, 5; 919-921
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Study of Magnetic Contribution to the Heat Capacity of $YbCu_4Ni$
Autorzy:: Čurlik, I.
Reiffers, M.
Giovannini, M.
Powiązania:: https://bibliotekanauki.pl/articles/1419635.pdf
Data publikacji:: 2012-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.27.+a
75.30.-m
75.30.Mb
Opis:: An investigation of the magnetic heat capacity of the heavy-fermion compound $YbCu_4Ni$ up to 0.4 K is presented. The novel compound $LuCu_4Ni,$ isotypic with $YbCu_4Ni$ has been synthesized and characterized, and its heat capacity was measured in order to subtract the lattice contribution from the previously measured heat capacity data of $YbCu_4Ni$.
Źródło:: Acta Physica Polonica A; 2012, 122, 1; 3-5
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Transport and Magnetic Properties of $YbCu_4Ni$
Autorzy:: Čurlik, I.
Mát'ošová, Š.
Il'kovič, S.
Reiffers, M.
Giovannini, M.
Powiązania:: https://bibliotekanauki.pl/articles/1419636.pdf
Data publikacji:: 2012-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.27.+a
75.30.-m
75.30.Mb
Opis:: The results on the influence of magnetic field on the electrical resistivity ρ(T) of the heavy fermion $YbCu_4Ni$ in the temperature range 0.4-300 K are presented. We have observed a Kondo-like behaviour below 10 K with a minimum in ρ(T) at about 60 K. An applied magnetic field depresses this behaviour, and a maximum in ρ(T) appears similarly to the maximum observed in heat capacity. The observed electrical magnetoresistance shows negative values in all applied magnetic fields and with increasing temperature its absolute magnitude increases. Moreover, we extended our previous susceptibility measurements up to high temperatures of 1000 K, in order to study possible mixed valence behaviour, which however was not observed.
Źródło:: Acta Physica Polonica A; 2012, 122, 1; 6-10
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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