000088973 001__ 88973
000088973 005__ 20180317093509.0
000088973 022__ $$a0141-1594
000088973 02470 $$2ISI$$a000082365100009
000088973 037__ $$aARTICLE
000088973 245__ $$aMechanism of polarization response and dielectric non-linearity of PbMg1/3Nb2/3O3 relaxor ferroelectric
000088973 260__ $$c1999
000088973 269__ $$a1999
000088973 336__ $$aJournal Articles
000088973 500__ $$aTagantsev, AK Ecole Polytech Fed Lausanne, Ceram Lab, CH-1015 Lausanne, Switzerland Ecole Polytech Fed Lausanne, Ceram Lab, CH-1015 Lausanne, Switzerland
000088973 500__ $$aPart B
000088973 500__ $$a232HL
000088973 500__ $$aTimes Cited:1
000088973 500__ $$aCited References Count:19
000088973 520__ $$aThe non-linear dielectric properties of single crystals of PbMg1/3Nb2/3O3 relaxer ferroelectric were investigated experimentally by using measurements of the dielectric permittivity of this material as a function of the DC bias and the AC driving fields. The results were analyzed using four models of the dielectric response of relaxors currently discussed in the literature, It was shown that among them only one model was consistent with the experimental data. This provides strong evidence that the mechanism of the dielectric response in PMN is controlled by the motion of the interphase boundaries of the polar regions. The analysis of the AC field dependence of non-linear dielectric permittivity showed that this dependence is described by a power law, with a temperature-dependent exponent. With decreasing temperature, the exponent exhibits a crossover, changing from 1 to 2, which is centered around the temperature of the onset of the frequency dispersion of the dielectric permittivity. The crossover was attributed to a change in the pinning regime of the polar region boundaries.
000088973 6531_ $$apmn
000088973 6531_ $$arelaxor
000088973 6531_ $$anon-linearity
000088973 6531_ $$apinning
000088973 6531_ $$ainterphase boundaries
000088973 6531_ $$alead magnesium niobate
000088973 6531_ $$ainduced phase-transition
000088973 6531_ $$amodel
000088973 6531_ $$atemperature
000088973 6531_ $$adynamics
000088973 6531_ $$aglass
000088973 700__ $$0240630$$aTagantsev, A. K.$$g106518
000088973 700__ $$aGlazounov, A. E.
000088973 773__ $$j65$$k1-4$$q117-139$$tPhase Transitions
000088973 909CO $$ooai:infoscience.tind.io:88973$$particle$$pSTI
000088973 909C0 $$0252012$$pLC$$xU10334
000088973 937__ $$aLC-ARTICLE-1999-049
000088973 970__ $$a281/LC
000088973 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000088973 980__ $$aARTICLE