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Epitaxial Growth of Room-Temperature Ferromagnetic MnAs Segments on GaAs Nanowires via Sequential Crystallization

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Hubmann, Joachim ; Bauer, Benedikt ; Körner, H. S. ; Furthmeier, Stephan ; Buchner, Martin ; Bayreuther, Günther ; Dirnberger, D. ; Schuh, Dieter ; Back, Christian ; Zweck, Josef ; Reiger, Elisabeth ; Bougeard, Dominique
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Date of publication of this fulltext: 23 Feb 2016 14:50


We investigate the incorporation of manganese into self-catalyzed GaAs nanowires grown in molecular beam epitaxy. Our study reveals that Mn accumulates in the liquid Ga droplet and that no significant incorporation into the nanowire is observed. Using a sequential crystallization of the droplet, we then demonstrate a deterministic and epitaxial growth of MnAs segments at the nanowire tip. This ...


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