Laboratoire de Photonique et de Nanostructures
Français Anglais
Semimagnetic semiconductors for spin electronics > GaMnAs Magnetic Patterning by means of Hydrogenation
image 1
image 2
image 3
image 4
image 5
image 6
image 7

GaMnAsPatterning

Trait horizontal

Puce Retour accueil


Puce Présentation


Trait vertical

Puce Présentation

Back to SemiMag


Main investigator: A. Lemaître
Former PhD student: L. Thevenard

Under construction

Magnetization reversal movie
Fig.: Magnetization reversal of an assembly of 10 µm x 10 µm ferromagnetic GaMnAs dots, defined by hydrogen passivation. The region outside the dots are passivated, paramagnetic GaMnAs. The movie is a series of snapshots, obtained by Kerr microscopy at 50 K. They were acquired after 5s magnetic field pulses of increasing intensities. The dots are not visible before reversal, since each snapshot was normalized with a reference image taken at saturation.


References
Magnetic patterning of (Ga,Mn)As by hydrogen passivation , L. Thevenard, A Miard, L. Vila, G. Faini, A. Lemaître, N. Vernier, J. Ferré, S Fusil, Appl. Phys. Lett. 91, 142511 (2007)

Accueil         Nous contacter         Annuaire         Venir au LPN         Actualités         Liens utiles