Interfacial Magnetism in Complex Oxide Heterostructures Probed by Neutrons and X-rays

TL;DR

This paper reviews recent experimental advances in understanding interfacial magnetism in complex oxide heterostructures using neutron and x-ray techniques, highlighting their role in revealing novel magnetic phenomena relevant for spintronics.

Contribution

It provides a comprehensive overview of recent experimental findings on interfacial magnetism in oxide heterostructures, emphasizing neutron and x-ray methods and their insights.

Findings

Interfacial magnetism exhibits novel phenomena.

Neutron and x-ray techniques are crucial for characterization.

Understanding interfacial effects aids spintronics development.

Abstract

Magnetic complex-oxide heterostructures are of keen interest because a wealth of phenomena at the interface of dissimilar materials can give rise to fundamentally new physics and potentially valuable functionalities. Altered magnetization, novel magnetic coupling and emergent interfacial magnetism at the epitaxial layered-oxide interfaces are under intensive investigation, which shapes our understanding on how to utilize those materials, particularly for spintronics. Neutron and x-ray based techniques have played a decisive role in characterizing interfacial magnetic structures and clarifying the underlying physics in this rapidly developing field. Here we review some recent experimental results, with an emphasis on those studied via polarized neutron reflectometery and polarized x-ray absorption spectroscopy. We conclude with some perspectives.