Lattice distortion and magnetic anisotropy of FeCo-Ti-N thin films

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Abstract

The magnetic properties and the microstructure of Rh(001)/FeCo-Ti-N thin film, which showed uniaxial magnetic anisotropy were investigated. Uniaxial magnetic anisotropy constant (Ku) was calculated as 0.98 MJm-3 in the film with the thickness of 23 nm, and the c/a was estimated to 1.08. The analysis of Fast Fourier Transform (FFT) patterns taken from HR-TEM image showed that the c/a of the FeCo-Ti-N film reached to 1.12 at the interface of Rh/FeCo-Ti-N layers, and it decreased with increasing distance from the interface. These results indicate that the lattice strain induced at the Rh/FeCo-Ti-N interface could increase Ku.

Original languageEnglish
Pages (from-to)804-811
Number of pages8
JournalIEEJ Transactions on Fundamentals and Materials
Volume136
Issue number12
DOIs
Publication statusPublished - 2016 Jan 1

Keywords

  • FeCo-Ti-N anisotropic thin films
  • Magnetic anisotropy constant
  • Rh underlayer
  • c/a

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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