04.11.2014 Views

a new model of correlated disorder in relaxor ferroelectrics

a new model of correlated disorder in relaxor ferroelectrics

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Where to move<br />

<br />

<br />

More realistic <strong>model</strong><strong>in</strong>g - with all atoms <strong>in</strong> the unit cell.<br />

From statistical properties <strong>of</strong> real space realizations to physical<br />

properties.<br />

<br />

<br />

<br />

Why the decay is sometimes a bit faster than q -2 ? Is it related<br />

to the attraction/repulsion poles on the Pb-locus sphere?<br />

Does Pb pattern results from normal phonon population, or it<br />

resembles the mechanism <strong>of</strong> “rogue waves” creation? Or nonl<strong>in</strong>ear<br />

discrete breathers? Or critical fluctuations?<br />

And what happens <strong>in</strong> lead-free <strong>relaxor</strong>s?

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