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首页> 外文期刊>Journal of Applied Physics >Scaling behavior of dynamic hysteresis in relaxor ferroelectric 0.67Pb(Mg1/3Nb2/3)O3–0.33PbTiO3 ceramics
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Scaling behavior of dynamic hysteresis in relaxor ferroelectric 0.67Pb(Mg1/3Nb2/3)O3–0.33PbTiO3 ceramics

机译:弛豫铁电0.67Pb(Mg1 / 3Nb2 / 3)O3-0.33PbTiO3陶瓷中动态磁滞的缩放行为

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摘要

The scaling behaviors of dynamic ferroelectric hysteresis in the relaxor ferroelectric 0.67Pb(Mg1/3Nb2/3)O3–0.33PbTiO3 (PMNT67/33) ceramics near the morphotropic phase boundary (MPB) and other PMNT systems out of MPB region were investigated. The scaling relation of hysteresis area 〈A〉 against frequency f and field amplitude E0 for minor loops takes the form of 〈A〉∝f-0.2391E04.8779; while for the saturated loops, it is 〈A〉∝f 0.0401E00.5722. The scaling relations of PMNT67/33 ceramics are significantly different from those of other ferroelectrics, and the results of the analysis indicate that domain reversal in it is much more sensitive to the change of E0 at low electric field and responses more quickly to f at high electric field than other normal ferroelectrics. The coexistence of rhombohedral (R), monoclinic (M) and tetragonal (T) phases near the MPB and the polar nanoregions seems to play the key role in the dynamic behavior of the domain reversal in relaxor PMNT67/33 ceramics.
机译:研究了弛豫铁电体0.67Pb(Mg1 / 3Nb2 / 3)O3-0.33PbTiO3(PMNT67 / 33)陶瓷中,在变质相界(MPB)附近以及MPB区域以外的其他PMNT系统中的动态缩放行为。磁滞区域〈A〉对频率f和场振幅E0的比例关系为小环,形式为〈A〉∝f -0.2391 E0 4.8779 ;而对于饱和回路,它是〈A〉∝f 0.0401 E0 0.5722 。 PMNT67 / 33陶瓷的比例关系与其他铁电材料的比例关系显着不同,分析结果表明,其中的畴反转对低电场下E0的变化更为敏感,而对高电场下f的响应则更快。电场比其他普通铁电体强。 MPB和极性纳米区域附近的菱形(R),单斜晶(M)和四方晶(T)相的共存似乎在弛豫PMNT67 / 33陶瓷的畴反转动力学行为中起关键作用。

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  • 来源
    《Journal of Applied Physics》 |2012年第8期|p.1-4|共4页
  • 作者

    Zhang Y. C.;

  • 作者单位
  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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