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Depth-Adjustable Magnetostructural Phase Transition in Fe60V40 Thin Films

  • Md. Shadab Anwar*
    Md. Shadab Anwar
    Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden−Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
    Fakultät Physik, Technische Universität Dresden, 01069 Dresden, Germany
    *(Md.S.A.) Email: [email protected]
  • Hamza Cansever
    Hamza Cansever
    Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden−Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
  • Benny Boehm
    Benny Boehm
    Instituts für Physik, Technische Universität Chemnitz, 09126 Chemnitz, Germany
    More by Benny Boehm
  • Rodolfo A Gallardo
    Rodolfo A Gallardo
    Departamento de Física, Universidad Técnica Federico Santa María, 2390123 Valparaíso, Chile
  • René Hübner
    René Hübner
    Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden−Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
  • Shengqiang Zhou
    Shengqiang Zhou
    Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden−Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
  • Ulrich Kentsch
    Ulrich Kentsch
    Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden−Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
  • Simon Rauls
    Simon Rauls
    Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Lotharstraße 1 47057 Duisburg, Germany
    More by Simon Rauls
  • Benedikt Eggert
    Benedikt Eggert
    Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Lotharstraße 1 47057 Duisburg, Germany
  • Heiko Wende
    Heiko Wende
    Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Lotharstraße 1 47057 Duisburg, Germany
    More by Heiko Wende
  • Kay Potzger
    Kay Potzger
    Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden−Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
    More by Kay Potzger
  • Juergen Fassbender
    Juergen Fassbender
    Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden−Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
  • Kilian Lenz
    Kilian Lenz
    Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden−Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
    More by Kilian Lenz
  • Jürgen Lindner
    Jürgen Lindner
    Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden−Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
  • Olav Hellwig
    Olav Hellwig
    Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden−Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
    Instituts für Physik, Technische Universität Chemnitz, 09126 Chemnitz, Germany
    More by Olav Hellwig
  • , and 
  • Rantej Bali*
    Rantej Bali
    Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden−Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
    *(R.B.) Email: [email protected]
    More by Rantej Bali
Cite this: ACS Appl. Electron. Mater. 2022, 4, 8, 3860–3869
Publication Date (Web):July 20, 2022
https://doi.org/10.1021/acsaelm.2c00499
Copyright © 2022 American Chemical Society

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    Abstract

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    Phase transitions occurring within spatially confined regions can be useful for generating nanoscale material property modulations. Here we describe a magneto-structural phase transition in a binary alloy, where a structural transition from short-range order (SRO) to body centered cubic (bcc) results in the formation of depth-adjustable ferromagnetic layers, which reveal application-relevant magnetic properties of high saturation magnetization (Ms) and low Gilbert damping (α). Here we use Fe60V40 binary alloy films which transform from initially Ms = 17 kA/m (SRO structure) to 747 kA/m (bcc structure) driven by atomic displacements caused by penetrating ions. Simulations show that an estimated ∼1 displacement per atom triggers a structural transition, forming homogeneous ferromagnetic layers. The thickness of a ferromagnetic layer increases as a step-like function of the ion fluence. Microwave excitations of the ferromagnetic/non-ferromagnetic layered system reveals an α = 0.0027 ± 0.0001. The combination of nanoscale spatial confinement, low α, and high Ms provides a pathway for the rapid patterning of magnetic and microwave device elements.

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    The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acsaelm.2c00499.

    • Determination of magnetic anisotropy, exchange stiffness, and Gilbert damping; out-of-plane perpendicular standing spin–wave mode; chemical analysis of top oxide layer; Ne+-fluence dependence; parameters used in SRIM simulation (PDF)

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    Cited By

    This article is cited by 1 publications.

    1. Hamza Cansever, Md. Shadab Anwar, Sven Stienen, Kilian Lenz, Ryszard Narkowicz, Gregor Hlawacek, Kay Potzger, Olav Hellwig, Jürgen Fassbender, Jürgen Lindner, Rantej Bali. Resonance behavior of embedded and freestanding microscale ferromagnets. Scientific Reports 2022, 12 (1) https://doi.org/10.1038/s41598-022-15959-0