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用于压电材料和铁电体研究的原子力显微镜

piezoresponse force microscopy image taken with an Asylum Research scanning probe microscope

压电响应力显微术(PFM)是一种原子力显微技术,可用于表征许多材料体系功能的机电耦合特性,包括:压电体、铁电体,以及某些生物材料。通过原子力显微镜的探针针尖,对样品进行局部的电刺激,同时测量其~1-100pm / V量级的机械响应。该技术与基础材料研究和应用技术的多个领域有关。在商用PFM技术领域,Asylum Research是公认的优质品牌,因为我们的产品具备各种先进的、有专利权的测量技术和功能,可提供无串扰、高灵敏度的PFM测量。

资讯AFM领域的专家
  • 在一个固定的频率下,或者通过跟踪共振(带有DART或带激励),对样本进行机电响应的成像。
  • 较高的针尖偏置电压可以提高测量的灵敏度:电压最高可达 ±150 V(利用Cypher™ 和MFP‑3D Infinity™ ),或者±220 V(利用MFP‑3D Origin™和 Origin+)
  • 内置的光刻工具,可用于书写结构畴和复杂图案。利用导入位图的灰度级,可以不断改变针尖的偏压。
  • 矢量PFM,可用于重建真实空间的极化方xian
  • 转换光谱,以产生压电响应振幅“蝴蝶”回线和相位“滞后”回路
  • 兼容各种环境台和配件,可使用加热和冷却功能,或将样品置于有湿度、气体灌注或应用磁场中

压电材料

  • 微机电系统(MEMS)
  • 传感器和致动器
  • 能源的储存和采集
  • 射频滤波器和开关
  • 声纳
  • 平衡和频率标准
  • 巨大的k电介质
  • 电容

铁电材料

  • 畴工程
  • 非易失性存储器
  • 数据存储设备
  • 畴能量学和动力

基础材料科学

  • 和临界现象
  • 尺寸效应
  • 成核动力学
  • 多铁性材料
  • 铁电聚合物
  • 液晶
  • 复合材料
  • 弛豫铁电体

生物-电机学

  • 心脏
  • 听觉
  • 细胞信号传导
  • 结构电机学
  • 生物传感器

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