MAGNETIZATION PROCESS OF A NANOMETER-SCALE COBALT DOTS ARRAY FORMED ON A RECONSTRUCTED AU(111) SURFACE

Authors
TAKESHITA H SUZUKI Y AKINAGA H MIZUTANI W ANDO K KATAYAMA T ITOH A TANAKA K
Citation
H. Takeshita et al., MAGNETIZATION PROCESS OF A NANOMETER-SCALE COBALT DOTS ARRAY FORMED ON A RECONSTRUCTED AU(111) SURFACE, Journal of magnetism and magnetic materials, 165(1-3), 1997, pp. 38-41
Citations number
8
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
165
Issue
1-3
Year of publication
1997
Pages
38 - 41
Database
ISI
SICI code
0304-8853(1997)165:1-3<38:MPOANC>2.0.ZU;2-3
Abstract
The magnetization processes of two-dimensionally periodic and nanomete r-scale Co dots formed on a reconstructed Au(111) surface were explore d utilizing the magneto-optical Kerr effect. The magnetization process es were affected by the size of the Co dot. At room temperature, super paramagnetic behavior was observed below about 0.5 ML Co coverage, abo ut 35 Angstrom dot diameter. A ferromagnetic transition of the whole s ystem was visible above about 1.1 ML.