Nanometers-thick self-organized Fe stripes: bridging the gap between surfaces and magnetic materials
Résumé
We have fabricated 5nm-high Fe(110) stripes by self-organized (SO) growth on a slightlyvicinal R(110)/Al2O3(11-20) surface, with R=Mo, W. Remanence, coercivity and domainpatterns were observed at room temperature (RT). This contrasts with conventional SO epitaxialsystems, that are superparamagnetic or even non-magnetic at RT due to their flatness. Ourprocess should help to overcome superparamagnetism without compromise on the lateral size if SOsystems are ever to be used in applications.