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首页> 外文期刊>Journal of Applied Physics >Surface acoustic wave propagation in Y- and Z-cut 0.67PbMgNbO_3-0.33PbTiO_3 single crystals
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Surface acoustic wave propagation in Y- and Z-cut 0.67PbMgNbO_3-0.33PbTiO_3 single crystals

机译：Y形和Z形切割的0.67PbMgNbO_3-0.33PbTiO_3单晶中的表面声波传播

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摘要

Surface acoustic wave (SAW) propogation in Y-cut and Z-cut relaxor-based 0.67Pb(Mg_(1/3)Nb_(2/3))O_3-0.33PbTiO_3 (PMN-33%PT) ferroelectric single crystals poled along [001]_c cubic direction has been analyzed theoretically. Characteristic curves were obtained for the phase velocity, electromechanical coupling coefficient and PFA of SAW in Y-cut and Z-cut PMN-33%PT single crystals. It was found that the phase velocity is lower, while the electromechanical coupling coefficient is much higher, than that of traditional piezoelectric materials. The power flow angle (PFA) can be zero in certain directions, which makes this crystal system a promising material for future SAW devices with smaller size and enhanced performance. The directions near 45° and 135° of Y-cut PMN-33%PT crystals are found to be optimum directions for SAW device applications.
机译：基于Y切和Z切弛豫的0.67Pb（Mg_（1/3）Nb_（2/3））O_3-0.33PbTiO_3（PMN-33％PT）铁电单晶的表面声波（SAW）传播[001] _c立方方向已在理论上进行了分析。获得了Y切面和Z切面PMN-33％PT单晶中SAW的相速度，机电耦合系数和PFA的特性曲线。发现相速度比传统压电材料低，而机电耦合系数高得多。在某些方向上的功率流角（PFA）可以为零，这使得该晶体系统成为具有较小尺寸和增强性能的未来声表面波器件的有前途的材料。发现Y切PMN-33％PT晶体的45°和135°附近的方向是SAW器件应用的最佳方向。

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  • 来源
    《Journal of Applied Physics》 |2009年第5期|054110.1-054110.4|共4页
  • 作者

    Xiuming Li; Rui Zhang; Naixing Huang; Tianquan Lue; Wenwu Cao;

  • 作者单位

    Department of Physics, Harbin Institute of Technology, Harbin, Heilongjiang 150080, China and Department of Physics, Daqing Normal University, Daqing, Heilongjiang 163712, China;

    Department of Physics, Harbin Institute of Technology, Harbin, Heilongjiang 150080, China;

    Department of Physics, Harbin Institute of Technology, Harbin, Heilongjiang 150080, China;

    Department of Physics, Harbin Institute of Technology, Harbin, Heilongjiang 150080, China;

    Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, USA;

  • 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);
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