Patterned electromagnetic alignment of magnetic nanowires

- High precision nanowire alignment technique combining electromagnetic alignment with microscale grooves is demonstrated.
- This combined technique is named patterned electromagnetic alignment (PEA).
- The patterned grooves help pin the nanowires on the surface along the magnetic field.
- The alignment accuracy of PEA increases with the magnetic field strength and with decreasing the length of nanowires.
- The PEA technique is applicable to place not only nanowires, but also nanotubes or other magnetic particulates.