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In this paper, we demonstrate the key issues of axial nanowire heterostructures, such as, the fundamental criteria for formation and failure of axial nanowire heterostructures via vapor-liquid-solid mechanism and lateral misfit strain relaxation in these structures. We show the failure of axial nanowire heterostructures by growing InAs axially on GaAs nanowires, and the lateral misfit strain relaxation...
Summary form only given. In the last few years, semiconductor nanowires (NWs) have attracted intensive attention due to both the intriguing fundamental properties and their potential applications in optoelectronic devices. GaAs NWs grown by metalorganic chemical vapor deposition (MOCVD) often exhibit tapered and kinked morphologies, depending on growth temperature. However, straight NWs of uniform...
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