在MIM隧道结的氧化铝和金层中加一层LB薄膜后,发现结的稳定性和其它一些物理性质比以前的普通结有所改善,本文讨论了变色现象,I—V特性曲线,并且展示了一些扫描电镜照片,从这些照片中我们可以粗略估计粗糙度. After adding a layer of LB film to the alumina and gold layers of the MIM tunnel junction, the stability of the junction and some other physical properties were found to be improved over the previous common junctions. The discoloration phenomenon, the I-V characteristic curve, and Some SEM pictures are shown, from which we can roughly estimate the roughness.