December 9, 2004
University of Arkansas physicists have discovered a new phase in nanodisks and nanorods that may enable researchers to increase memory storage density.
The researchers studied ferroelectric materials at the nanometer scale. They found that the dipoles in nanomaterials form a new state when the temperature is lowered. Instead of polarization, the new phase creates a toroid moment, which rotates in a circular fashion like a vortex or a tornado.… read more