Physics of SrTiO$_3$-based heterostructures and nanostructures: a review

TL;DR

This review summarizes the fundamental physics, fabrication methods, and quantum transport phenomena in SrTiO₃-based heterostructures and nanostructures, highlighting their complex phase behavior and device applications.

Contribution

It provides a comprehensive overview of the physics, growth techniques, and device physics of SrTiO₃ heterostructures, integrating recent research developments.

Findings

Detailed phase diagram of SrTiO₃ heterostructures

Coupling mechanisms between degrees of freedom

Examples of quantum transport phenomena

Abstract

This review provides a summary of the rich physics expressed within SrTiO$_3$-based heterostructures and nanostructures. The intended audience is researchers who are working in the field of oxides, but also those with different backgrounds (e.g., semiconductor nanostructures). After reviewing the relevant properties of SrTiO$_3$ itself, we will then discuss the basics of SrTiO$_3$-based heterostructures, how they can be grown, and how devices are typically fabricated. Next, we will cover the physics of these heterostructures, including their phase diagram and coupling between the various degrees of freedom. Finally, we will review the rich landscape of quantum transport phenomena, as well as the devices that elicit them.