Electron paramagnetic resonance investigation of polar nanoregions mobility in the relaxor PbMg.sub.1/3./sub.Nb.sub.2/3./sub.O.sub.3./sub. and solid solutions PbMg.sub.1/3./sub.Nb.sub.2/3./sub.O.sub.3./sub. - PbTiO.sub.3./sub..

0377008 - FZÚ 2013 RIV US eng J - Journal Article
Glinchuk, M. D. - Laguta, Valentyn - Yurchenko, L.P. - Rosa, Jan - Jastrabík, Lubomír - Eremkin, V. V. - Smotrakov, V. G.
Electron paramagnetic resonance investigation of polar nanoregions mobility in the relaxor PbMg_1/3Nb_2/3O₃ and solid solutions PbMg_1/3Nb_2/3O₃ - PbTiO₃.
Journal of Applied Physics. Roč. 111, č. 1 (2012), "014104-1"-"014104-6". ISSN 0021-8979. E-ISSN 1089-7550
Institutional research plan: CEZ:AV0Z10100521
Keywords : electron paramagnetic resonance * polar nanoregions * PMN * PMN - PbTiO3 solid solutions
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 2.210, year: 2012

Electron paramagnetic resonance (EPR) of Mn2+ and Fe3+ ions has been used as a probe of local static and dynamic lattice distortions in the relaxor ferroelectric PbMg1/3Nb2/3O3 (PMN) and solid solutions (1-x)PbMg1/3Nb2/3O3 – xPbTiO3 (x = 0.075–0.33) at temperatures from 290 to 800 K. The fraction of polar nanoregions in PMN determined from the EPR intensity is about 20% to 30%. An addition of PbTiO3 to PMN decreases total volume of the polar nanoregions and also suppresses their reorientational dynamics.
Permanent Link: http://hdl.handle.net/11104/0209272