Ferromagnetism in Diluted Magnetic Semiconductor Heterojunction Systems

TL;DR

This paper explores the physics of ferromagnetism in diluted magnetic semiconductor heterojunctions, emphasizing how doping, defects, and external controls influence magnetic and magnetoresistive properties.

Contribution

It provides a detailed analysis of the mechanisms driving ferromagnetism in DMS heterojunction systems and how system parameters can be engineered to tailor magnetic properties.

Findings

Magnetic properties depend on doping profiles and defect distributions.

Magnetoresistive effects are tunable via gate voltage and system engineering.

Insights into controlling ferromagnetism in semiconductor heterostructures.

Abstract

Diluted magnetic semiconductors (DMSs), in which magnetic elements are substituted for a small fraction of host elements in a semiconductor lattice, can become ferromagnetic when doped. In this article we discuss the physics of DMS ferromagnetism in systems with semiconductor heterojunctions. We focus on the mechanism that cause magnetic and magnetoresistive properties to depend on doping profiles, defect distributions, gate voltage, and other system parameters that can in principle be engineered to yield desired results.