Paper Title:
Electric-Pulse-Induced Reversible Resistance Change Effect and Its Fatigue Behavior in Manganite Perovskite Films
  Abstract

A novel electric-pulse-induced reversible resistance (EPIR) change effect was observed in Ag/Ln1-xCaxMnO3/Pt (Ln= Pr, La) sandwich structure at room temperature without applied magnetic field. The Ln1-xCaxMnO3 films were grown on Pt/Ti/SiO2/Si substrate. The resistance of the Ag/Ln1-xCaxMnO3/Pt sandwich structure increases and reaches at a saturated high resistance state after applying a certain number of electric-pulse from Pt bottom electrode to Ln1-xCaxMnO3 layer, while it decreases and switches to a saturated low resistance state when the pulse polarity reversed. It is also found that the EPIR effect in the /Ln0.7Ca0.3MnO3/Pt system exhibits “fatigue” behavior, that is, for the high resistance state activated by electric-pulse, along the time after pulsing, the resistance decreases slowly after a certain stable stage; otherwise, the resistance change ratio decreases as the number of the high-low resistance switching circle increases. For the fatigue phenomenon with time, a resistance change with three stages was observed and a simple mechanism of the EPIR was proposed.

  Info
Periodical
Materials Science Forum (Volumes 475-479)
Main Theme
Edited by
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
Pages
3799-3802
DOI
10.4028/www.scientific.net/MSF.475-479.3799
Citation
Q. Wang, R. Dong, L. D. Chen, T. L. Chen, X. M. Li, "Electric-Pulse-Induced Reversible Resistance Change Effect and Its Fatigue Behavior in Manganite Perovskite Films", Materials Science Forum, Vols. 475-479, pp. 3799-3802, 2005
Online since
January 2005
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