Magnetic and transport properties of sputtered La0.67Ca0.33MnO3 thin films

S. Freisem*, A. Brockhoff, D. G. De Groot, B. Dam, J. Aarts

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

We report on the magnetic and transport properties of thin films of La0.67Ca0.33MnO3 as a function of annealing temperature, substrate material and film thickness. The films were sputtered from a stoichiometric target with the same nominal composition and were grown epitaxially on SrTiO3 and LaAlO3 substrates. We find a clear correlation between the ferromagnetic ordering temperature TM and the magnitude of the magnetoresistance ratio (MR ratio). Also, TM appears to be extremely sensitive to the preparation conditions: within the one composition investigated, TM could be made to vary between 125 K and 255 K.

Original languageEnglish
Pages (from-to)380-382
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume165
Issue number1-3
DOIs
Publication statusPublished - 1997

Bibliographical note

Funding Information:
Acknowledgements. The authors wish to thank P.H. Kes and J. Mydosh for stimulating discussions and G.L.E. van Vliet, R.W.A. Hendrikx and T.J. Gortenmulder for experimental support. This work is part of the research program of the 'Stichting voor Fundamenteel Onderzoek der Materie', which is financially supported by 'NWO'.

Keywords

  • Ferromagnetic ordering temperature
  • Magnetoresistance
  • Thin films
  • Transport properties

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