Tailoring Spins and Orbitals in Spin–Orbitronic Interfaces Probed by X-Ray Magnetic Circular Dichroism
This review summarizes recent X-ray magnetic circular dichroism (XMCD) studies for interfacial perpendicular magnetic anisotropy. The nature of chemical bonding and electron occupancies bring novel properties at the interfaces. The control of orbital magnetic moments could enable to reveal and utilize novel promising phenomena beyond spintronics. Detailed investigations of anisotropic orbital magnetic moments at the interfaces in Fe|MgO and Co|Pd cases are discussed with brief introduction of theoretical background of XMCD spectra and brief history of this technique.
The author acknowledges to the collaboration with Dr. S. Mitani and Dr. H. Sukegawa in NIMS for the parts of section 3 and Dr. Y. Miura in NIMS and Prof. H. Munekata in Tokyo Institute of Technology for the parts of section 4. These works are partly supported by KAKENHI.