Nanostructures Defined by The Local Oxidation of Ferromagnetic GaMnAs Layer

Show full item record

Files in this item

PDF ens07_085.pdf 699.7Kb

Pour citer ce document :
URI: http://hdl.handle.net/2042/14138
Title: Nanostructures Defined by The Local Oxidation of Ferromagnetic GaMnAs Layer
Author: Voves J.; Soban, Zbynek; Jelinek, Michal; Komarnickij, Volodimir; Cukr, Miroslav; Novak, Vit
Abstract: The results of Local Anodic Oxidation (LAO) on the thin GaMnAs layers are reported. The ferromagnetic GaMnAs layers were prepared by low temperature MBE growth in a Veeco Mod Gen II machine. The LAO process was performed with the AFM microscope Smena NT-MDT placed in the sealed box with the controlled humidity in the range 45-80%. The oxide was grown in the semi-contact mode of the AFM. Sample was positively biased with respect to the AFM tip with the bias from 6 to 24 V. The conductive diamond coated AFM tips with the radius 30 nm were utilized for the oxidation. The tip speed during the oxidation was changed from 400 nm/s to 1.5 μm/s. The tip force was also changed during the oxidation. The height of oxide nanolines increases with applied voltage from 3 to 18 nm. The width of these lines was approximately 100 nm at half of the maximum.
Publisher: EDAP Editions , Grenoble, France
Date: 2007

This item appears in the following Collection(s)

Show full item record





Advanced Search