Inelastic neutron scattering study of the dynamics of the AlNiCo decagonalphase

Authors
Dugain, F de Boissieu, M Shibata, K Currat, R Sato, TJ Kortan, AR Suck, JB Hradil, K Frey, F Tsai, AP
Citation
F. Dugain et al., Inelastic neutron scattering study of the dynamics of the AlNiCo decagonalphase, EUR PHY J B, 7(4), 1999, pp. 513-516
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
EUROPEAN PHYSICAL JOURNAL B
ISSN journal
14346028 → ACNP
Volume
7
Issue
4
Year of publication
1999
Pages
513 - 516
Database
ISI
SICI code
1434-6028(199902)7:4<513:INSSOT>2.0.ZU;2-3
Abstract
The dynamics of the decagonal AlNiCo phase has been investigated on a singl e-grain quasicrystalline sample using inelastic neutron scattering. The dec agonal structure can be viewed as a periodic stacking of quasiperiodic plan es. The anisotropy between the modes propagating in the periodic and quasip eriodic directions is found to be much weaker than theoretically predicted. A strong resonance splitting is observed at an energy transfer of 15 meV f or transverse modes polarized in the quasiperiodic plane.