Nanometers-thick self-organized Fe stripes: bridging the gap between surfaces and magnetic materials
Olivier Fruchart, Mustafa Eleoui, Jan Vogel, Pierre-Olivier Jubert, Andrea Locatelli, A Ballestrazzi
Abstract
We have fabricated 5nm-high Fe(110) stripes by self-organized (SO) growth on a slightly vicinal R(110)/Al2O3(11-20) surface, with R=Mo, W. Remanence, coercivity and domain patterns were observed at room temperature (RT). This contrasts with conventional SO epitaxial systems, that are superparamagnetic or even non-magnetic at RT due to their flatness. Our process should help to overcome superparamagnetism without compromise on the lateral size if SO systems are ever to be used in applications.
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