Magnetic Properties of Nanoscale Wire and Dot Systems

Magnetic nano-wires and nano-dots were fabricated using an electron-beam lithography and lift-off technique, and the magnetic structures were controlled by engineering the size and shape. We demonstrate here the control of magnetic domain formation and domain wall movement in magnetic nano-wires, the measurement of domain wall resistance using nano-contacts between magnetic nano-wires, and the detection of magnetization reversal of the magnetic vortex core in magnetic nano-dots.