The result of small angle x-ray scattering measurements on Pb(Mg1/3Nb2/3)O3 (PMN) questions the validity of the widely accepted structural nano-domain model for the relaxor behavior. Based upon the results of pulsed neutron powder diffraction measurements with the pair-distribution function (PDF) analysis on PMN, Pb(Zr1-xTix)O3 (PZT) and (Pb1-xLax)(Zn1-yTiy)O3 (PLZT), an alternative atomistic mechanism of relaxor behavior applicable both to PMN and PLZT is proposed. The implications of the new mechanism to piezoelectricity are also discussed.
|Journal||Journal of the Korean Physical Society|
|Issue number||3 SUPPL.|
|State||Published - 1 Dec 1998|