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Magnitude and sign control of lithography-induced uniaxial anisotropy in ultra-thin (Ga,Mn)As wires

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Shiogai, Junichi ; Schuh, Dieter ; Wegscheider, Werner ; Kohda, M. ; Nitta, J. ; Weiss, Dieter
License: Allianz- bzw. Nationallizenz
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Date of publication of this fulltext: 24 Feb 2011 14:26


We were able to control the magnitude and sign of the uniaxial anisotropy in 5-nm-thin (Ga,Mn)As wires by changing the crystallographic direction of the lithography-induced strain relaxation. The 1-μm-wide (Ga,Mn)As wires, oriented in [110] and [1math0] directions, were fabricated using electron beam lithography. Their magnetic anisotropies were studied by a coherent rotation method at ...


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