适用于高矫顽电压和剩余极化材料的高速高功率铁电开关电流测量仪器。

High-Speed and High-Power Ferroelectric Switching Current Measurement Instrument for Materials with Large Coercive Voltage and Remanent Polarization.

机构信息

Department of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, CO 80401, USA.

Materials Science Center, National Renewable Energy Laboratory, Golden, CO 80401, USA.

出版信息

Sensors (Basel). 2022 Dec 9;22(24):9659. doi: 10.3390/s22249659.

DOI:10.3390/s22249659

PMID:36560028

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9784202/

Abstract

A high-speed and high-power current measurement instrument is described for measuring rapid switching of ferroelectric samples with large spontaneous polarization and coercive field. Instrument capabilities (±200 V, 200 mA, and 200 ns order response) are validated with a LiTaO single crystal whose switching kinetics are well known. The new instrument described here enables measurements that are not possible using existing commercial measurement systems, including the observation of ferroelectric switching in large coercive field and large spontaneous polarization AlScN thin films.

摘要

一种高速、高功率电流测量仪器，用于测量具有大自发极化和矫顽场的铁电样品的快速开关。该仪器的性能（±200 V、200 mA 和 200 ns 阶跃响应）通过具有良好开关动力学性能的 LiTaO 单晶进行了验证。本文所描述的新仪器能够进行现有商业测量系统无法进行的测量，包括观察大矫顽场和大自发极化 AlScN 薄膜中的铁电开关。