Nanowires are a topic of continuing interest and there have been many reports on the fabrication of these structures [1]. Because they are very high aspect ratio structures that can be made with a range of different semiconductor or metallic materials, their potential uses are manifold. Nickel nanowires have been shown to be able to act as a carrier for living cells, thus enabling them to be arranged in an ordered array [2]. The ability to magnetically manipulate living cells as well as bio-molecules is a great asset in biomolecular research. Ni-Bi and Ni-Au nanowires have been shown to align on magnetic contacts [3], this demonstrates the potential for scalable integration in high-density nanodevices. For all these applications, it is essential to be able to fabricate and manipulate nanowires in a controlled manner. We report on the growth of different types of nanowires and their manipulation on patterned magnetic structures.
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