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Modern Magnetic and Spintronic Materials pp 73–94Cite as

L10 Ordered Thin Films for Spintronic and Permanent Magnet Applications

Part of the NATO Science for Peace and Security Series B: Physics and Biophysics book series (NAPSB)

Abstract

Materials with strong perpendicular magnetic anisotropy (PMA) are fundamentally appealing and also relevant for numerous applications especially considering their practical relevance for the enhancement of the energy product for thin film based permanent magnets and realization of energy efficient and miniaturized spintronic devices. In contrast to materials exhibiting PMA due to surface anisotropy, these applications would benefit from thin films where PMA stems from a strong uniaxial magnetocrystalline anisotropy (Ku). In this regard, magnetic thin films with chemically ordered L10 structure, representing alternation of A and B atomic planes along the c direction, are considered as most promising due to the high Ku values and finely tunable magnetic properties. Typical representatives of L10 structures are ordered binary phases, e.g. FePt, FePd, MnAl, MnGa, or NiFe. In the case when the c axes of the L10 structure is normal to the film plane, remarkably strong PMA can be achieved. Another important property of L10 structures is their thermodynamic stability providing resistance of corresponding devices against thermal processing. Here, we will review the application prospects of L10 ordered magnetic thin films for spintronic and permanent magnet technologies.

Keywords

  • Thin films
  • Permanent magnet
  • Spintronic
  • MTJ
  • MRAM

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Notes

  1. 1.

    https://www.everspin.com/spin-transfer-torque-mram-products

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Authors and Affiliations

  1. Metal Physics Department, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Kyiv, Ukraine

    Arsen Hafarov, Serhii Sidorenko & Igor Vladymyrskyi

  2. Faculty of Radio Physics, Electronics and Computer Systems, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine

    Oleksandr Prokopenko

  3. Helmholtz-Zentrum Dresden-Rossendorf e.V, Institute of Ion Beam Physics and Materials Research, Dresden, Germany

    Denys Makarov

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  1. Arsen Hafarov
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  4. Denys Makarov
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  5. Igor Vladymyrskyi
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Correspondence to Arsen Hafarov .

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  1. National Centre for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, Athens, Greece

    Andreas Kaidatzis

  2. Metals Physics Department, National Technical University of Ukraine, Kiev, Ukraine

    Serhii Sidorenko

  3. Metals Physics Department, National Technical University of Ukraine, Kiev, Ukraine

    Igor Vladymyrskyi

  4. National Centre for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, Athens, Greece

    Dimitrios Niarchos

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Hafarov, A., Prokopenko, O., Sidorenko, S., Makarov, D., Vladymyrskyi, I. (2020). L10 Ordered Thin Films for Spintronic and Permanent Magnet Applications. In: Kaidatzis, A., Sidorenko, S., Vladymyrskyi, I., Niarchos, D. (eds) Modern Magnetic and Spintronic Materials. NATO Science for Peace and Security Series B: Physics and Biophysics. Springer, Dordrecht. https://doi.org/10.1007/978-94-024-2034-0_4

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