Jun Okabayashi

Helicity‐Dependent All‐Optical Switching in Bi,Ga‐Substituted Rare‐Earth Iron Garnet Films Driven by Orbital Magnetic Moment

ABSTRACT All‐optical magnetization switching (AOS) is a promising phenomenon for applications such as high‐speed optical modulation technologies, as it enables magnetization switching using only ultrashort laser pulses. AOS induced by circularly polarized light is demonstrated in...

Amorphous Tungsten Driving Extraordinary Long‐Range Interlayer Exchange Coupling and Large Spin‐Orbit Torque

ABSTRACT Artificially‐designed magnetic hetero‐structures with an antiferromagnetic alignment of magnetization in magnetic layers, which exploit the interlayer exchange coupling (IEC) through a non‐magnetic layer, are called synthetic antiferromagnets (SyAF) and are a treasure tr...