Co-doped La0.5Sr0.5TiO3-δ: Diluted magnetic oxide system with high Curie temperature

Y. G. Zhao, S. R. Shinde, S. B. Ogale, J. Higgins, R. J. Choudhary, V. N. Kulkarni, R. L. Greene, T. Venkatesan, S. E. Lofland, C. Lanci, J. P. Buban, N. D. Browning, S. Das Sarma, A. J. Millis

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Abstract

The study investigates the ferromagnetism observed at and above room temperature in pulsed laser deposited epitaxial films of Co-doped Ti-based oxide perovskite (La0.5Sr0.5TiO3-δ). It is found that the films range from being opaque metallic to transparent semiconducting depending on the oxygen pressure during growth. The dependence of the magnetic and transport properties on y and γ suggests a strong role of carrier density, dynamics and materials related issues.

Original languageEnglish (US)
Pages (from-to)2199-2201
Number of pages3
JournalApplied Physics Letters
Volume83
Issue number11
DOIs
StatePublished - Sep 15 2003

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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