Jeong, IK and Lee, JK
(2006)
Local structure and medium-range ordering in relaxor ferroelectric Pb(Zn <inf>1/3</inf>Nb <inf>2/3</inf>)O <inf>3</inf> studied using neutron pair distribution function analysis.
Applied Physics Letters, 88 (26).
ISSN 0003-6951
Abstract
We studied an evolution of local structure and medium-range ordering in relaxor ferroelectric Pb(Zn 1/3Nb 2/3)O 3 (PZN) from 550 to 15 K using neutron pair distribution function analysis. We show that the local structure of PZN is distorted at all temperatures studied. With decreasing temperature, a medium-range ordering of local polarizations develops with no global rhombohedral phase transition below T M. Instead, the crystal structure can be described as a mixture of polar nanoregions in a disordered lattice, similar to the case of Pb(Mg 1/3Nb 2/3)O 3. © 2006 American Institute of Physics.
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