Get access

Planar Hall effect of the Fe3Si epitaxial films with different in-plane configurations on MgO substrates

Authors

  • B. L. Guo,

    1. Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Institute of Advanced Materials Physics, Faculty of Science, Tianjin University, Tianjin, P.R. China
    Search for more papers by this author
  • P. Li,

    1. Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Institute of Advanced Materials Physics, Faculty of Science, Tianjin University, Tianjin, P.R. China
    Search for more papers by this author
  • C. Jin,

    1. Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Institute of Advanced Materials Physics, Faculty of Science, Tianjin University, Tianjin, P.R. China
    Search for more papers by this author
  • H. Liu,

    1. Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Institute of Advanced Materials Physics, Faculty of Science, Tianjin University, Tianjin, P.R. China
    Search for more papers by this author
  • H. L. Bai

    Corresponding author
    1. Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Institute of Advanced Materials Physics, Faculty of Science, Tianjin University, Tianjin, P.R. China
    • Corresponding author: e-mail baihaili@tju.edu.cn, Phone: +86 022 2740 6991, Fax: +86 022 2740 3425

    Search for more papers by this author

Abstract

Fe3Si films with (001), (112), and (011) c-axis orientations were grown on MgO(001), (011), and (111) substrates by sputtering, respectively. The epitaxial relationship of the Fe3Si films on MgO was verified by X-ray diffractions (XRDs) with θ−2θ and ϕ scans. All the planar Hall resistance (PHR) curves of the Fe3Si films with different orientations show a nearly sinusoidal behavior at high fields (H ≥ 100 Oe). When the magnetic field is below 100 Oe, the planar Hall effect (PHE) lineshapes of the Fe3Si(001) and Fe3Si(112) films deviate from the sin2θM function and show abrupt switching patterns. Meanwhile, the curves of PHE of the Fe3Si(011) film show triangle shape. The PHE at high fields can be interpreted by single domain magnetic moments reversal models. The different low-field PHEs in the Fe3Si films were explained by multi-domain magnetic properties and different in-plane epitaxial configurations, which are closely correlated to the relation between the in-plane symmetries of the films and substrates.

Ancillary