Spin-orbit torque induced magnetization anisotropy modulation in Pt/(Co/Ni)4/Co/IrMn heterostructure

• Main Authors: Engel, Christian, Goolaup, Sarjoosing, Luo, Feilong, Gan, Weiliang, Lew, Wen Siang
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2017
• Subjects: Magnetic fields; Magnetic anisotropy
• Online Access: https://hdl.handle.net/10356/83464; http://hdl.handle.net/10220/42578
• Institution: Nanyang Technological University

In this work, we show that domain wall (DW) dynamics within a system provide an alternative platform to characterizing spin-orbit torque (SOT) effective fields. In perpendicularly magnetized wires with a Pt/(Co/Ni)4/Co/IrMn stack structure, differential Kerr imaging shows that the magnetization swit...