Current-processing-induced anisotropic conduction in manganite films

Y. W. Xie, J. R. Sun, D. J. Wang, S. Liang, Yunzhong Chen, W. M. Lu, B. G. Shen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Current-processing–induced anisotropic conduction (CIAC) has been observed recently in La1−xCaxMnO3 (x= 0.2, 0.33) films. Here we report a more applicable and simple method, applying processing current at room temperature, to produce such anisotropic conduction. Using this method, we have examined La1−xCaxMnO3 (x= 0.2, 0.33), La0.67Sr0.33MnO3, Pr0.7Ca0.3MnO3, La0.35Pr0.32Ca0.33MnO3 and La0.7Ce0.3MnO3 films grown on SrTiO3 substrates, and found CIAC in all these films, showing CIAC is a fairly universal phenomenon for manganites. The method exhibits good ability to process samples of large resistance/size. We even got remarkable anisotropic conduction in a manganite film as long as 3 mm. Our effort provides a very simple method to prepare such samples, which will help to further researches in this field.
Original languageEnglish
Article number27005
JournalEPL
Volume79
Issue number2
Number of pages4
ISSN0295-5075
DOIs
Publication statusPublished - 2007
Externally publishedYes

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