Fabrication of L-shaped Fe4N ferromagnetic narrow wires and position control of magnetic domain wall with magnetic field. (22nd January 2015)

• Record Type: Journal Article
• Authors: Gushi, Toshiki; Ito, Keita; Honda, Syuta; Yasutomi, Yoko; Toko, Kaoru; Oosato, Hirotaka; Sugimoto, Yoshimasa; Asakawa, Kiyoshi; Ota, Norio; Suemasu, Takashi
• Is Part Of: Japanese journal of applied physics. Volume 54:Number 2(2015:Jan.)Supplement
• Publication Date: 2015-01-22
• Subjects: Physics -- Periodicals; 621.05
• DOI: 10.7567/JJAP.54.028003
• Languages: English
• ISSNs: 0021-4922

Abstract

Abstract: We grow a 15-nm-thick ferromagnetic Fe4 N 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, Fe4 N[100] and [010]. With applying external magnetic field in the direction parallel to Fe4 N[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 Fe4 N having a negative spin polarization.