Characteristics of different types of filaments in resistive switching memories investigated by complex impedance spectroscopy
X. L. Jiang,1 Y. G. Zhao,1,a) Y. S. Chen,2 D. Li,2 Y. X. Luo,1 D. Y. Zhao,1 Z. Sun,1 J. R. Sun,2,b) and H. W. Zhao2 
1 Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University, Beijing 100084, China
2 Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190, China