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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The versatile electrocaloric (EC) behaviors of the (1-x)Pb(Mg1/3Nb2/3)O3-xPT (PMN-100xPT) single crystal are closely related to the multiple phase transitions under the multiple fields of electric field and temperature. In this work, the EC effect of <001>-oriented PMN-30PT single crys...
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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 ...
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 ...
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...
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Donor and acceptor–codoped PMN–30PT ceramics with 1–3mol% Sm and 1mol% Mn were fabricated via a two-step solid-state reaction. The crystal structure and electrical properties were investigated in detail. Donor Sm and acceptor Mn codoping substantially enhances the electromechanical, ...