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Mössbauer Spectroscopy Investigation of c-axis Oriented hcp-CoIr Magnetic Films as a Function of Film Thickness up to Micrometer Regime

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Abstract

In this work, we have investigated the microscopic magnetic properties of c-axis oriented hcp-CoIr soft magnetic thin films (SMTFs) by using Mössbauer spectroscopy. We have found that the deviation of magnetic moments from the film plane slowly increases with increasing film thickness due to perpendicular magnetic anisotropy coming from the film growth procedure. Our results also suggest that optimizing the growth conditions at the initial stage of the film growth should be very important to further reduce this deviation. These results will be beneficial for further improving the soft magnetic properties of these SMTFs for functional electronic devices.

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Funding

This work was supported by the National Natural Science Foundations of China (Nos. 11704167 and 11574122) and the Fundamental Research Funds for the Central Universities (Nos. lzujbky-2017-k20 and lzujbky-2017-31).

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Authors and Affiliations

  1. Key Lab for Magnetism and Magnetic Materials of the Ministry of Education, Key Lab for Special Function Materials and Structure Design of the Ministry of Education, Lanzhou University, Lanzhou, 730000, People’s Republic of China

    Z. Luo, T. Y. Ma, Y. Li, Z. W. Li, T. Wang & F. S. Li

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  1. Z. Luo
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  2. T. Y. Ma
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  3. Y. Li
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  4. Z. W. Li
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  5. T. Wang
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  6. F. S. Li
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Correspondence to Z. W. Li.

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Luo, Z., Ma, T.Y., Li, Y. et al. Mössbauer Spectroscopy Investigation of c-axis Oriented hcp-CoIr Magnetic Films as a Function of Film Thickness up to Micrometer Regime. J Supercond Nov Magn 32, 3957–3963 (2019). https://doi.org/10.1007/s10948-019-05187-5

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  • DOI: https://doi.org/10.1007/s10948-019-05187-5

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