Spin waves in ultrathin ferromagnetic overlayers - art. no. 174401

Authors
Barbosa, LHM Muniz, RB Costa, AT Mathon, J
Citation
Lhm. Barbosa et al., Spin waves in ultrathin ferromagnetic overlayers - art. no. 174401, PHYS REV B, 6317(17), 2001, pp. 4401
Citations number
24
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6317
Issue
17
Year of publication
2001
Database
ISI
SICI code
0163-1829(20010501)6317:17<4401:SWIUFO>2.0.ZU;2-E
Abstract
The influence of a nonmagnetic metallic substrate on the spin-wave excitati ons in ultrathin ferromagnetic overlayers is investigated for different cry stalline orientations. We show that spin-wave damping in these systems occu rs due to the tunneling of holes from the substrate into the overlayer, and that the spin-wave energies may be considerably affected by the exchange c oupling mediated by the substrate.