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Magnetic and Crystalline Microstructure of SrRuO3 Thin Films

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Abstract

The relationship between the magnetic and crystalline microstructure of SrRuO3 thin films is analyzed using transmission electron microscopy. Regions with a stripe magnetic domain structure in different orientations are observed in Lorentz imaging mode when the specimens are zero-field-cooled through the ferromagnetic transition temperature, Tc ≈ 150K. The different orientations of the stripe regions correspond to different crystallographic domains as determined by electron diffraction and magnetic image contrast; all of the six possible orientations of the orthorhombic SrRuO3 structure grown epitaxially on a SrTiO3 cubic substrate are identified. The results show that the uniaxial anisotropy indicated for these multi(crystal)domain films is the same as that determined for single crystal films by bulk magnetization measurements, and is therefore primarily magnetocrystalline in nature.

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Acknowledgements

This work was supported by the NSF-MRSEC program through the Center for Materials Research at Stanford University.

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Authors and Affiliations

  1. Center for Materials Research and Applied Physics Dept., Stanford University, Stanford, CA, 94305, USA

    A. F. Marshall

  2. E L Ginzton Lab, Stanford, CA, 94305, USA

    L. Antognazza & L. Mieville

Authors
  1. A. F. Marshall
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  2. L. Klein
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  3. C. H. Ahn
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  4. S. Dodge
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  5. J. Reiner
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  6. L. Antognazza
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  7. L. Mieville
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  8. A. Kapitulnik
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  9. T. H. Geballe
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  10. M. R. Beasley
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Marshall, A.F., Klein, L., Ahn, C.H. et al. Magnetic and Crystalline Microstructure of SrRuO3 Thin Films. MRS Online Proceedings Library 474, 223–228 (1997). https://doi.org/10.1557/PROC-474-223

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  • DOI: https://doi.org/10.1557/PROC-474-223

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