本文总结了我们近年来利用压电力显微镜(PFM)研究PMN-30%PT单晶体中铁电畴的结构及其演变的结果。选择PMN-30%PT晶体是因为该组分在超声传感器等应用方面具有最大的潜力。铁电畴的观察是基于反压电现象;具体来讲就是当交变电场通过原子力显微镜探针加到晶体表面时,会引起晶体表面的起伏振荡,而锁相放大器可以解出该...
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Both the piezoelectric constant d33 and the rate kt/kp of PMN—PT PFC are higher than that of PZT PFC‥ 展开 关键词: PMN—PT PFC PZT 会议名称: 2009 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA 2009) ...
压电力显微镜本文总结了我们近年来利用压电力显微镜(PFM)研究PMN 30%PT单晶体中铁电畴的结构及其演变的结果.选择PMN-30%PT晶体是因为该组分在超声传感器等应用方面具有最大的潜力.铁电畴的观察是基于反压电现象;具体来讲就是当交变电场通过原子力显微镜探针加到晶体表面时,会引起晶体表面的起伏振荡,而锁相放大器可以...
Top-seeded solution growth and characterization of rhombohedral PMN-30PT piezoelectric single crystals[J].{H}ACTA MATERIALIA,2007,(19):6507-6512.doi:10.1016/j.actamat.2007.08.009.Long, X. F.; Ye, Z.-G. Top-seeded solution growth and characterization of rhombohedral PMN-30PT piezoelectric ...
domain kineticsPolarization reversal process has been studied in [001]-cut lead magnesium niobate-lead titanate single crystals with 30% lead titanate by in situ visualization of domain kinetics and switching current analysis. It has been shown by high-resolution methods that the sample poling leads...
X-ray diffraction (XRD) reciprocal space mapping (RSM) was used to investigate how nanograted electrodes affect the nanodomain distribution and average crystal structure in near-surface regions of poled Pb(Mg1/3Nb2/3)O3-30%PbTiO3 (PMN-30PT) single crystals. The RSM scans revealed a ...
In this paper, we report the development of a bidirectional high-frequency (HF) PW ultrasound Doppler system, using either a 45 MHz PMN-PT (lead magnesium niobate-lead titanate) needle transducers or 30-35 MHz linear arrays. The system included the HF directional pulsed-wave Doppler block ...
However, up to date, Mn:PIN-PMN-PT single crystals applied to practical FTs haven't been reported in the literature. In this paper, a broadband class VII FT based on [001]C poled Mn:PIN-PMN-PT is proposed. To fully utilize the excellent properties of Mn:PIN-PMN-PT, the structural ...