title: Giant effect of uniaxial pressure on magnetic domain populations in multiferroic bismuth ferrite.
abstract: Neutron diffraction is used to show that small (∼7 MPa, or 70 bar) uniaxial pressure produces significant changes in the populations of magnetic domains in a single crystal of 2% Nd-doped bismuth ferrite. The magnetic easy plane of the domains converted by the pressure is rotated 60° relative to its original position. These results demonstrate extreme sensitivity of the magnetic properties of multiferroic bismuth ferrite to tiny (less than 10(-4)) elastic strain, as well as weakness of the forces pinning the domain walls between the cycloidal magnetic domains in this material.
authors: Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA.
authors: M
authors: M
authors: Ramazanoglu
authors: W
authors: W
authors: Ratcliff
authors: H T
authors: HT
authors: Yi
authors: A A
authors: AA
authors: Sirenko
authors: S-W
authors: SW
authors: Cheong
authors: V
authors: V
authors: Kiryukhin