In situ single-liquid-source metal-organic chemical vapor deposition of (La0.8Ca0.2)MnO3 giant magnetoresistive films

Y. Q. Li, J. Zhang, S. Pombrik, S. DiMascio, W. Stevens, Y. F. Yan, N. P. Ong

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

A large magnetoresistance change (∆R/RH) of —550% has been observed at 270 K in (La0.8Ca0.2)MnO3 thin films. The films were prepared in situ on LaAlO3 substrates by single-liquid-source metal-organic chemical vapor deposition. M(thd)n (M = La, Ca, and Mn, and n = 2, 3) were dissolved together in an organic solution and used as precursors for the deposition of (La0.8Ca0.2)MnO3 thin films. Deposition was conducted at an oxygen partial pressure of 1.2 Torr and a substrate temperature ranging from 600 °C to 700 °C. The mechanism for the large magnetoresistance change in this manganese oxide is briefly discussed.

Original languageEnglish (US)
Pages (from-to)2166-2169
Number of pages4
JournalJournal of Materials Research
Volume10
Issue number9
DOIs
StatePublished - Sep 1995

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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