ULTRA-FAST SPIN DYNAMICS IN DILUTED MAGNETIC SEMICONDUCTORS

Authors
WILAMOWSKI Z BUCZKO R KARCZEWSKI G JANTSCH W
Citation
Z. Wilamowski et al., ULTRA-FAST SPIN DYNAMICS IN DILUTED MAGNETIC SEMICONDUCTORS, Acta Physica Polonica. A, 90(5), 1996, pp. 969-972
Citations number
6
Categorie Soggetti
Physics
Journal title
Acta Physica Polonica. A → ACNP
ISSN journal
05874246
Volume
90
Issue
5
Year of publication
1996
Pages
969 - 972
Database
ISI
SICI code
0587-4246(1996)90:5<969:USDIDM>2.0.ZU;2-D
Abstract
In nano-size antiferromagnetic systems a spatially inhomogeneous field leads to the formation of a staggered magnetization. Thereby the tota l magnetic moment does not change but the formation of a net magnetic moment at the border of the cluster leads to an energy gain. This type of magnetism is characterised by an ultra-fast dynamics. We suggest i t is also responsible for the formation of the exciton magnetic polaro n.