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Article Dans Une Revue Applied Physics Letters Année : 2005

Tuning the ferromagnetic properties of hydrogenated GaMnAs

Résumé

Hydrogenation and posthydrogenation annealings have been used as a very efficient tool to tune the hole density over a wide range, at fixed magnetic moment concentration, in thin GaMnAs layers. Reduction of the hole density resulted in strong modifications of their ferromagnetic properties. In particular, we observed in magnetotransport experiments the decrease of the Curie temperature, along with modifications of the magnetic anisotropy, a behavior consistent with the mean-field theory.
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Dates et versions

hal-00004730 , version 1 (15-04-2005)
hal-00004730 , version 2 (12-01-2006)

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L. Thevenard, Ludovic Largeau, Olivia Mauguin, Aristide Lemaître, Bertrand Theys. Tuning the ferromagnetic properties of hydrogenated GaMnAs. Applied Physics Letters, 2005, 87, pp.182506. ⟨10.1063/1.2126147⟩. ⟨hal-00004730v2⟩
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