Bi-directional high speed domain wall motion in perpendicular magnetic anisotropy Co/Pt double stack structures

• Main Authors: Sethi, Pankaj, Krishnia, Sachin, Gan, Weiliang, Kholid, Farhan N., Tan, Funan, Maddu, Ramu, Lew, Wen Siang
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2018
• Subjects: Dzyloshinskii-Moriya Interaction; Perpendicular Magnetic Anisotropy
• Online Access: https://hdl.handle.net/10356/89525; http://hdl.handle.net/10220/44979
• Institution: Nanyang Technological University

We report bi-directional domain wall (DW) motion along and against current flow direction in Co/Pt double stack wires with Ta capping. The bi-directionality is achieved by application of hard-axis magnetic field favoring and opposing the Dzyloshinskii-Moriya interaction (DMI), respectively. The spee...