Magnetic force micrographs

Magnetic force micrographs of carbon nanotubes lying on a magnetic substrate. The tube shows a single domain configuration magnetized along its length - indicated by the blue arrow. (photo credit: O Céspedes 2004)

Magnetic force micrographs of carbon nanotubes lying on a magnetic substrate. The tube shows a single domain configuration magnetized along its length - indicated by the blue arrow. (photo credit: O Céspedes 2004)