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Transition from Au to pseudo-Ga catalyzed growth mode observed in GaAs nanowires grown by molecular beam epitaxy

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Soda, Marcello ; Rudolph, Andreas ; Schuh, Dieter ; Zweck, Josef ; Bougeard, Dominique ; Reiger, Elisabeth
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Date of publication of this fulltext: 26 Jul 2012 09:37


We investigate the correlation between the Ga concentration of the catalyst droplet and the adopted crystal structure of individual GaAs nanowires grown by molecular-beam epitaxy using Au as a catalyst material. Through a postgrowth analysis the Ga content of the catalyst droplet during growth is estimated and related to the observed crystal structure of the nanowires. Depending on the Ga ...


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