Test method of pulse response characteristics for conductive switching materials induced by electromagnetic pulse field

Abstract

Electrical field induced conductive switching materials are novel nonlinear materials. They can show an abrupt reduction of resistivity when the external electrical field strength exceeds a predefined threshold, and the materials will switch from insulated state to conductive state. In this letter, a novel time-domain response characteristics test method of conductive switching materials induced by electromagnetic pulse field was proposed based on the parallel micro-strip principle. In the experiments, the test principle was analyzed by the equivalent circuit model and micro-strip principle, and the evaluation method of resistivity, response time and field strength threshold value of the materials under tested was also given. The theoretical results of the typical conductive switching material agree well with the experimental data.