Direction-controlled growth of nickel nanowire between electrodes with the assistance of magnetic field

Abstract

This paper proposes a novel bridging technique for the direction-controlled growth of nickel nanowires between pre-fabricated Au electrodes under magnetic field. The nanowires grew on the tip of an electrode with the assistance of an external magnetic field. The nanowires, about 150 nm in diameter and a few of micrometers in length, had high uniformity and grew spontaneously along the direction of the magnetic field. The growth direction of the nanowires was along the magnetic field gradient. Transport measurements show Coulomb blockade behavior. The nanowire interconnections yield potential barriers to carrier transport between the nanowires and the electrodes. Understanding and using the effects will allow the controlled fabrication of nanoelectronic devices in the near future.