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Rapid constructing magnetic phase diagrams by magneto-optical imaging of composition spread films

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Abstract

In this paper we present a new method of the rapid construction of magnetic phase diagrams in a temperature-composition space, using magneto-optic imaging with an indicator film technique (MOIF). The method is applied for mapping the diagram for the La1-xCaxMnO3 colossal magneto-resistive oxide, using the spread films deposited on a SrTiO3 substrate. The constructed magnetic diagram is in a good agreement with data on uniform films and bulk crystals of this system. The MOIF study of transitions under cooling and heating has revealed the formation of a non-magnetic phase in the area of temperatures from 5 K to 57 K and compositions from x = 0 to x - 0.5.

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Authors and Affiliations

  1. Metallurgy Division, Materials Science and Engineering Laboratory, National Institute of Standards and Technology, Gauthersburg, Maryland, 20899, USA

    L. A. Bendersky & A. J. Shapiro

  2. Department of Materials Science and Engineering, University of Maryland, College Park, Maryland, 20742, USA

    K. S. Chang, I. Takeuchi & A. L. Roytburd

Authors
  1. M. J. Turchinskaya
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  2. L. A. Bendersky
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  3. A. J. Shapiro
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  4. K. S. Chang
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  5. I. Takeuchi
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  6. A. L. Roytburd
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Correspondence to L. A. Bendersky.

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Turchinskaya, M.J., Bendersky, L.A., Shapiro, A.J. et al. Rapid constructing magnetic phase diagrams by magneto-optical imaging of composition spread films. Journal of Materials Research 19, 2546–2548 (2004). https://doi.org/10.1557/JMR.2004.0327

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  • DOI: https://doi.org/10.1557/JMR.2004.0327

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