Emergent phenomena at oxide interfaces studied with standing-wave photoelectron spectroscopy

Year: 2022

Type: article

Abstract: Emergent phenomena at complex-oxide interfaces have become a vibrant field of study in the past two decades due to the rich physics and a wide range of possibilities for creating new states of matter and novel functionalities for potential devices. The electronic-structural characterization of such phenomena presents a unique challenge due to the lack of direct yet nondestructive techniques for probing buried layers and interfaces with the required Ångstrom-level resolution, as well as element and orbital specificity. In this Review, we survey several recent studies wherein soft x-ray standing-wave photoelectron spectroscopy—a relatively newly developed technique—is used to investigate buried oxide interfaces exhibiting emergent phenomena such as metal-insulator transition, interfacial ferromagnetism, and two-dimensional electron gas. The advantages, challenges, and future applications of this methodology are also discussed.

Source: Journal of Vacuum Science & Technology A Vacuum Surfaces and Films

DOI: 10.1116/6.0001584

Authors: Cheng-Tai Kuo, Giuseppina Conti, Julien E. Rault, Claus M. Schneider, Slavomír Nemšák, Alexander X. Gray

Institutions: Lawrence Berkeley National Laboratory, Synchrotron SOLEIL, SLAC National Accelerator Laboratory, Stanford Synchrotron Radiation Lightsource, Advanced Light Source, University of California, Davis, Temple University, Forschungszentrum Jülich

Language: English

Topic: Electron and X-Ray Spectroscopy Techniques

Subfield: Surfaces, Coatings and Films

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funders: U.S. Department of Energy, Agence Nationale de la Recherche, Laboratoire d’excellence Physique Atomes Lumière Matière, Office of Science, Basic Energy Sciences, SLAC National Accelerator Laboratory

OpenAlex ID: W3209336253