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@ARTICLE{Mihailova:192653,
author = {Mihailova, Boriana and Waeselmann, Naemi and Maier, Bernd
and Welsch, A. and Angel, Ross and Bismayer, Ulrich},
title = {{P}ressure-induced structural transformations in advanced
ferroelectrics with relaxor behaviour},
journal = {High pressure research},
volume = {33},
number = {3},
issn = {0895-7959},
address = {London [u.a.]},
publisher = {Taylor and Francis},
reportid = {PUBDB-2014-04230, bmbf-projekt 05k13gu1},
pages = {595-606},
year = {2013},
note = {© Taylor $\&$ Francis},
abstract = {A series of model perovskite-type relaxor ferroelectrics
(pure and A-/B-site doped PbSc1/2Ta1/2O3 andPbSc1/2Nb1/2O3
as well as of 0.9PbZn1/3Nb2/3O3 − 0.1PbTiO3) were studied
by high pressure diffractionand inelastic light scattering
in order to elucidate the mesoscopic-scale ferroic atomic
arrangementsresponsible for the superb macroscopic
properties of these materials. The combined analysis of the
pressureenhancedphonon anomalies observed by Raman
spectroscopy and the pressure-induced long-range
orderdetected by synchrotron X-ray and neutron diffraction
revealed that at ambient conditions antiferrodistortiveorder
coexists with the ferroelectric order on the mesoscopic
scale. This suggests that the locallypolarized spatial
nanoregions known as polar nanoregions are ferrielectric in
nature and their abundanceand mean size depend on both the
antiferrodistortive and ferroelectric coupling, which in
turn can be tunedby appropriate chemical variations.},
cin = {DOOR},
ddc = {530},
cid = {I:(DE-H253)HAS-User-20120731},
pnm = {DORIS Beamline F2.1 (POF2-54G13)},
pid = {G:(DE-H253)POF2-F2.1-20130405},
experiment = {EXP:(DE-H253)D-F2.1-20150101},
typ = {PUB:(DE-HGF)29 / PUB:(DE-HGF)16},
UT = {WOS:000327006700014},
doi = {10.1080/08957959.2013.806499},
url = {https://bib-pubdb1.desy.de/record/192653},
}