Direct observation of current induced conductive path in colossal electroresistance manganite thin films
Wengang Wei,1,2 Yinyan Zhu,1 Yu Bai,1 Hao Liu,1 Kai Du,1 Kai Zhang,1 Yunfang Kou,1 Jian Shao,1 Wenbin Wang,1 Denglu Hou,2 Shuai Dong,3 Lifeng Yin,1,4, and Jian Shen1,4, 1State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China 2College of Physics and Information Engineering, Hebei Normal University, Shijiazhuang 050024, China 3Department of Physics, Southeast University, Nanjing 211189, China 4Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China (Received 7 October 2015; revised manuscript received 30 November 2015; published 12 January 2016)