Dynamics of helical domain wall in cylindrical nanowires

• Main Author: Wong, Shawn De Wei
• Other Authors: Lew Wen Siang
• Format: Final Year Project
• Language: English
• Published: 2015
• Subjects: DRNTU::Science::Physics
• Online Access: http://hdl.handle.net/10356/64753
• Institution: Nanyang Technological University

We report on the dynamics of helical domain wall (DW) in 350-nm-diameter cylindrical NiFe nanowires. Our micromagnetic simulations findings show that a minimum current density is needed to overcome the intrinsic pinning to drive the helical DW. At low current density, the helical DW undergoes a rota...