Trap-controlled space-charge-limited current mechanism in resistance switching at AlPr0.7Ca0.3MnO3 interface

T. Harada, I. Ohkubo, K. Tsubouchi, H. Kumigashira, T. Ohnishi, M. Lippmaa, Y. Matsumoto, H. Koinuma, M. Oshima

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Abstract

Well-defined metal-insulator-metal trilayered structures composed of epitaxiAlPr0.7Ca0.3MnO3 insulator layers, epitaxial LaNi O3 bottom electrodes, and Al metal top electrodes were fabricated on LaAlO3 (100) substrates. The I-V characteristics of the trilayer structures show electric-field-induced resistance switching. The resistance switching ratio of the heterostructures was up to 100 when positive and negative pulsed voltages were applied. Detailed I-V analysis indicates the importance of both trap-controlled space-charge-limited current and Poole-Frenkel effect in resistance switching at AlPr0.7Ca0.3MnO3 interfaces.

Original languageEnglish
Article number222113
JournalApplied Physics Letters
Volume92
Issue number22
DOIs
Publication statusPublished - 2008 Jun 13
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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