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a new model of correlated disorder in relaxor ferroelectrics

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Real space <strong>model</strong>: concept at work<br />

<br />

<br />

cluster 64 3 was populated by 3*64 3 waves with random phases<br />

and appropriate amplitudes<br />

all local displacements were normalized to the radius <strong>of</strong> Pb<br />

sphere (e.g. 0.08a)<br />

cut <strong>of</strong> real space cluster<br />

x component<br />

HK0 scatter<strong>in</strong>g from cluster<br />

decay as q -2

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