Giant Effect of Uniaxial Pressure on Magnetic Domain Populations in Multiferroic Bismuth Ferrite
M. Ramazanoglu, William D. Ratcliff, H. T. Yi, A. A. Sirenko, S.- W. Cheong, V. Kiryukhin
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 orginal position. These results deomonstrate 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.
, Ratcliff, W.
, Yi, H.
, Sirenko, A.
, Cheong, S.
and Kiryukhin, V.
Giant Effect of Uniaxial Pressure on Magnetic Domain Populations in Multiferroic Bismuth Ferrite, Physical Review Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=908803
(Accessed November 30, 2023)