- Tytuł:
- Magnetic Properties of Icosahedral (Au,Cu)-Al-Yb Quasicrystals
- Autorzy:
-
Oki, S.
Hiroto, T.
Muro, Y.
Tamura, R. - Powiązania:
- https://bibliotekanauki.pl/articles/1373451.pdf
- Data publikacji:
- 2014-08
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.50.Kj
75.20.Hr - Opis:
- We have synthesized Cu-substituted (Au,Cu)-Al-Yb quasicrystals in order to investigate the relationship between the quasilattice constant and the magnetic property. The quasilattice constant $a_{R}$ is found to decrease as Au is replaced by Cu, and the maximum reduction of 2.18% in $a_{R}$ was observed for x=0.60 in $(Au_{1-x}Cu_x)_{49}Al_{34}Yb_{17}$. Magnetic measurements of $(Au_{1-x}Cu_x)_{49}Al_{34}Yb_{17}$ (x=0, 0.10, 0.20, 0.50) show that the intermediate-valence state of Yb persists in all the studied compositions. The effective magnetic moment is found to depend on r̅/$a_{R}$ rather than on the quasilattice constant $a_{R}$. This suggests that r̅/$a_{R}$ can be regarded as a measure of the chemical pressure induced on the Yb atoms.
- Źródło:
-
Acta Physica Polonica A; 2014, 126, 2; 553-555
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł