THE EFFECT OF NEAREST NEIGHBOR [Pb─O] DIVACANCY PAIRS ON THE FERROELECTRIC-RELAXOR TRANSITION IN NANO-ORDERED Pb(Sc1/2Nb1/2)O3. - BURTON, B. P.; TINTE, SILVIA; COCKAYNE, ERIC; WAGHMARE, U. V. (Integrated Ferroelectrics, 2008)