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Effects of layer modulus on the phase evolutions and magnetic properties of [MgO/FePt]n multilayer thin films

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Abstract

Multilayer structural system is expected to reduce demagnetization energy and obtain outstanding magnetic anisotropy. The effects of layer modulus (n) on the phase evolutions and magnetic properties of [MgO/FePt]n multilayer thin films were systematically investigated. The low ordering parameters and coercivity when annealing at 600 °C indicated that the existence of the MgO phase would enhance the L10–FePt transformation temperature. When annealing at 800 °C, the coercivity of 9 kOe with a superior in-plane magnetic anisotropy was obtained in [MgO/FePt]2 multilayer film. This multilayer film has reasonable exchange coupling interactions between the magnetic grains (α = 2.4) that could be utilized as an ideal candidate for micro-electro-mechanical systems (MEMS).

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The experimental dataset can be provided if requested at the corresponding author.

References

  1. B.Z. Cui, K. Han, D.S. Li et al., Magnetic-field-induced crystallographic texture enhancement in cold-deformed FePt nanostructured magnets. J. Appl. Phys. 100, 013902 (2006). https://doi.org/10.1063/1.2206410

    Article  ADS  Google Scholar 

  2. H. Fukunaga, T. Kamikawatoko, M. Nakano et al., Effect of laser beam parameters on magnetic properties of Nd–Fe–B thick-film magnets fabricated by pulsed laser deposition. J. Appl. Phys. 109, 07A758 (2011). https://doi.org/10.1063/1.3566080

    Article  Google Scholar 

  3. T. Yanai, K. Furutani, T. Ohgai et al., F–Pt thick-film magnets prepared by electroplating method. J. Appl. Phys. 117, 17A744 (2015). https://doi.org/10.1063/1.4918698

    Article  Google Scholar 

  4. J.H. Bae, T.K. Kim, H.M. Kim et al., Effect of Pt and FePt layer thickness on microstructure and magnetic properties of L10 FePt films with perpendicular anisotropy. IEEE Trans. Magn. 55, 1–6 (2019). https://doi.org/10.1109/TMAG.2019.2908134

    Article  Google Scholar 

  5. C.P. Luo, D.J. Sellmyer, Structural and magnetic properties of FePt:SiO2 granular thin films. Appl. Phys. Lett. 75, 3162 (1999). https://doi.org/10.1063/1.125264

    Article  ADS  Google Scholar 

  6. T. Shima, K. Takanashi, Y.K. Takahashi et al., Coercivity exceeding 100 kOe in epitaxially grown FePt sputtered films. Appl. Phys. Lett. 85, 2571 (2004). https://doi.org/10.1063/1.1794863

    Article  ADS  Google Scholar 

  7. P.V. Makushko, M.Y. Verbytska, M.N. Shamis et al., Effect of initial stress/strain state on the L10 phase formation of FePt in FePt/Au/FePt trilayers. Appl. Nanosci. 10, 2775–2780 (2020). https://doi.org/10.1007/s13204-019-01066-6

    Article  ADS  Google Scholar 

  8. M. Futamoto, M. Nakamura, T. Shimizu et al., Influence of stress and strain on L10 -ordered phase formation in FePt thin film. IEEE Trans. Magn. 54(11), 2102204 (2018). https://doi.org/10.1109/TMAG.2018.2829831

    Article  Google Scholar 

  9. J. Tsai, C. Sun, J. Lin et al., Magnetic properties and microstructure of FePt (Ag, C) films with MgTiOBN/CrRu underlayer. Surf. Coat. Tech. 434, 128136 (2022). https://doi.org/10.1016/j.surfcoat.2022.128136

    Article  Google Scholar 

  10. Y.K. Takahashi, K. Hono, T. Shima et al., Microstructure and magnetic properties of FePt thin films epitaxially grown on MgO (001) substrates. J. Magn. Magn. Mater 267, 248–255 (2003). https://doi.org/10.1016/S0304-8853(03)00377-9

    Article  ADS  Google Scholar 

  11. W. Lu, C.C. He, Z. Chen et al., Magnetic properties of epitaxial-grown exchange-coupled FePt/FeRh bilayer films. Appl. phys. A. 108, 149–153 (2012). https://doi.org/10.1007/s00339-012-6862-1

    Article  ADS  Google Scholar 

  12. M. Hagiuda, S. Mitani, T. Seki et al., Epitaxial growth of L10–FePt/MgO/L10–FePt (0 0 1) trilayer structures. J. Magn. Magn. Mater. 310, 1905–1907 (2007). https://doi.org/10.1016/j.jmmm.2006.10.877

    Article  ADS  Google Scholar 

  13. Y.F. Ding, J.S. Chen, E. Liu, Epitaxial L10 FePt films on SrTiO3 (100) by sputtering. J. Crystal. Growth. 276, 111–115 (2005). https://doi.org/10.1016/j.jcrysgro.2004.10.154

    Article  ADS  Google Scholar 

  14. B. Laenens, F.M. Almeida et al., Interplay between structural and magnetic properties of L10–FePt(001) thin films directly grown on MgO (001). J. Appl. Phys. 105, 073913-073913–073916 (2009). https://doi.org/10.1063/1.3093955

    Article  Google Scholar 

  15. T. Suzuki, Z. Zhang, A.K. Singh et al., Annealing effect on magnetic property and recording performance of [FePt/MgO]n perpendicular magnetic recording media. J. Magn. Magn Mater. 286, 306–310 (2005). https://doi.org/10.1016/j.jmmm.2004.09.084

    Article  ADS  Google Scholar 

  16. I. Suzuki, J. Wang, Y.K. Takahashi et al., Control of grain density in FePt–C granular thin films during initial growth. J. Magn. Magn. Mater. 500, 166418 (2020). https://doi.org/10.1016/j.jmmm.2020.166418

    Article  Google Scholar 

  17. C. Feng, B.H. Li, Y. Liu et al., Improvement of magnetic property of L10–FePt film by FePt∕Au multilayer structure. J. Appl. Phys. 103, 023916 (2008). https://doi.org/10.1063/1.2828148

    Article  ADS  Google Scholar 

  18. F.J. Yang, H. Wang, H.B. Wang et al., Effect of interfacial diffusion on microstructure and properties of FePt/B4C multifunctional multilayer composite films. Appl. Surf. Sci. 254, 2516–2520 (2008). https://doi.org/10.1016/j.apsusc.2007.09.085

    Article  ADS  Google Scholar 

  19. T.J. Zhou, M.H. Lu, L. Shen et al., Synthesis, characterization and hard ferromagnetism in FePt/ZnO nanocomposites with ultra-small size. IEEE Trans. Magn. 50(1), 1–5 (2014). https://doi.org/10.1109/TMAG.2013.2272794

    Article  ADS  Google Scholar 

  20. M. Ohtake, A. Itabashi, M. Futamoto et al., Crystal orientation, order degree, and surface roughness of FePd-alloy film formed on MgO (001) substrate. IEEE Trans. Magn. 51, 2100904 (2015). https://doi.org/10.1109/TMAG.2015.2434883

    Article  Google Scholar 

  21. J. Chiou, H.W. Chang, C. Chi, C. Hsiao, C. Ouyang, L10 FePt films with optimal (001) texture on amorphous sio2/si substrates for high-density perpendicular magnetic recording media. ACS Appl. Nano. Mater. 2, 5663–5673 (2019). https://doi.org/10.1021/acsanm.9b01192

    Article  Google Scholar 

Download references

Acknowledgements

This work was supported by the National Key R&D Program of China (2022YFB3505700, 2022YFB3807900), National Natural Science Foundation of China (Grant No. 51901079), Basic and Applied Basic Research Program of Guangzhou (No. 202102020596), Natural Science Foundation of Guangdong Province (Grant Nos. 2020A1515010736 and 2021A1515010451), the Guangzhou Municipal Science and Technology Program (No. 202007020008), the Fundamental Research Funds for the Central Universities, the Opening Project of National Engineering Research Center for Powder Metallurgy of Titanium & Rare Metals, the Fundamental Research Funds for the Central Universities and Zhongshan Municipal Science and Technology Program (Grant No. 191007102629094), and Zhongshan Collaborative Innovation Fund (Grant No. 2018C1001).

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Authors and Affiliations

  1. School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China

    Y. Hong, Y. P. Zeng, Z. G. Qiu, Z. G. Zheng & D. C. Zeng

  2. Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000, Grenoble, France

    Y. Hong

  3. Zhongshan R&D Center for Materials Surface and Thin Films Technology, South China University of Technology, Gent Materials Surface Technology (Guangdong) Co., Ltd, Zhongshan, 528437, China

    Y. P. Zeng, Z. G. Qiu, Z. G. Zheng & D. C. Zeng

  4. Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, China

    J. P. Guo & D. Y. Chen

  5. Laboratory of Rare-Earth Magnetic Functional Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China

    W. X. Xia

  6. Department of Physics, University of Texas at Arlington, Arlington, TX76019, USA

    J. P. Liu

  7. Yangjiang Branch, Guangdong Laboratory Materials Science and Technology Yangjing Advanced Alloys Laboratory, Yangjiang, 529500, China

    Z. G. Qiu, Z. G. Zheng & D. C. Zeng

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  1. Y. Hong
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Correspondence to Z. G. Qiu.

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Hong, Y., Zeng, Y.P., Qiu, Z.G. et al. Effects of layer modulus on the phase evolutions and magnetic properties of [MgO/FePt]n multilayer thin films. Appl. Phys. A 128, 1099 (2022). https://doi.org/10.1007/s00339-022-06237-x

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