Polarization fields in nitride nanostructures: ten points to think about

TL;DR

This paper critically examines ten key propositions to clarify the controversial issues surrounding polarization fields in nitride nanostructures, emphasizing their impact on device properties and theoretical understanding.

Contribution

It provides a critical discussion of ten propositions to clarify misconceptions and controversies about polarization effects in nitride nanostructures.

Findings

Polarization effects significantly influence nitride nanostructure properties.

The paper clarifies misconceptions about polarization fields.

Controversies in the field are addressed through critical analysis.

Abstract

Macroscopic polarization, both of intrinsic and piezoelectric nature, is unusually strong in III-V nitrides, and the built in electric fields in the layers of nitride-based nanostructures, stemming from polarization changes at heterointerfaces, have a major impact on the properties of single and multiple quantum wells, high mobility transistors, and thin films. The concepts involved in the theory and applications of polarization in nitrides have encountered some resistance in the field. Here we discuss critically ten ``propositions'' aimed at clarifying the main controversial issues.