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The polarity origin of the bipolar resistance switching behaviors in metal/ La0.7 Ca0.3 MnO3 /Pt junctions

Yang, Rui; Li, Xiaomin; Yu, Weidong; Gao, Xiangdong; Shang, D S; Liu, Xinjun; Cao, Xun; Wang, Qun; Chen, Lidong


Bipolar resistance switching behaviors in the M/ La0.7 Ca 0.3 MnO3 /Pt (M=Pt, Ag, Cu, Al, Ti, and W) junctions were investigated. We found that the switching polarities of the junctions for M=Pt, Ag, and Cu were opposite to those for M=Al, Ti, and W. This phenomenon was attributed to the different Gibbs free energy of the metal oxide formation. Based on Auger electron spectroscopy measurement of the M/ La0.7 Ca0.3 MnO3 interfaces, the switching mechanisms were further discussed in terms of...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.3203999


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