Magnetic Properties of Icosahedral (Au,Cu)–Al–Yb Quasicrystals.
- Resource Type
- Article
- Authors
- OKI, S.; HIROTO, T.; MURO, Y.; TAMURA, R.
- Source
- Acta Physica Polonica: A. Aug2014, Vol. 126 Issue 2, p553-555. 3p.
- Subject
- *MAGNETIC properties
*ICOSAHEDRA
*PLATONIC solids
*QUASICRYSTALS
*LATTICE constants
- Language
- ISSN
- 0587-4246
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 aR is found to decrease as Au is replaced by Cu, and the maximum reduction of 2.18% in aR was observed for x = 0:60 in (Au1-xCux)49Al34Yb17. Magnetic measurements of (Au1-xCux)49Al34Yb17 (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 ¯r/aR rather than on the quasilattice constant aR. This suggests that ¯r/aR can be regarded as a measure of the chemical pressure induced on the Yb atoms. [ABSTRACT FROM AUTHOR]