Investigation of resistive switching on glass under irradiation of slow highly charged ion beam

玻璃是典型的绝缘体，其体积和表面电阻率极高。例如，电流实际上不能通过0.1-1毫米厚的钠石灰玻璃板。如果能控制这种高电阻率的开关，就能实现大电阻率开关器件。在这项研究中，我们采用慢速高电荷离子微束，在真空中对玻璃板上的一个点状区域进行了充电，并测量了反射离子的轨迹。在考虑动态充电分布的情况下，对轨迹进行了分析，发现电阻率取决于电荷引起的电场强度，并显示了迟滞开关回路的可能性，并通过模型计算再现了迟滞开关回路。

Glass is known as typical insulator, whose volume and surface resistivities are extremely high. For example, electric current cannot flow practically through a 0.1-1 mm-thick soda-lime glass plate. If the switching of this high resistivity can be controlled, switching devices with huge resistivity would be realized. In this study, employing slow highly charged ion microbeams, we charged a point-like region on a glass plate in vacuum and measured the trajectories of the reflected ions. Analyzing the trajectories taking into account the dynamic charge-up distribution, it turned out that the resistivity depends on the strength of the electric field induced by the charge and shows possibility of a hysteretic switching loop, which was reproduced by a model calculation.