Fabrication of L-shaped Fe4N ferromagnetic narrow wires and position control of magnetic domain wall with magnetic field

Toshiki Gushi, Keita Ito, Syuta Honda, Yoko Yasutomi, Kaoru Toko, Hirotaka Oosato, Yoshimasa Sugimoto, Kiyoshi Asakawa, Norio Ota, Takashi Suemasu

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4 Citations (Scopus)

Abstract

We grow a 15-nm-thick ferromagnetic Fe4N epitaxial film on a SrTiO3(001) substrate by molecular beam epitaxy, and process it into approximately 0.5-μm-wide and 24-μm-long L-shaped ferromagnetic narrow wires by electron-beam lithography and Cl2 reactive ion etching. Their longitudinal directions are set in parallel to the magnetic easy axes, Fe4N[100] and [010]. With applying external magnetic field in the direction parallel to Fe4N[100] or [010], the position of domain wall is controlled either on the upper side or lower side of the corner. This experiment is the preliminary step toward current-driven domain wall motion in Fe4N having a negative spin polarization.

Original languageEnglish
Article number028003
JournalJapanese journal of applied physics
Volume54
Issue number2
DOIs
Publication statusPublished - 2015 Feb 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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    Gushi, T., Ito, K., Honda, S., Yasutomi, Y., Toko, K., Oosato, H., Sugimoto, Y., Asakawa, K., Ota, N., & Suemasu, T. (2015). Fabrication of L-shaped Fe4N ferromagnetic narrow wires and position control of magnetic domain wall with magnetic field. Japanese journal of applied physics, 54(2), [028003]. https://doi.org/10.7567/JJAP.54.028003