Transition from Ferromagnetism to Antiferromagnetism in Ga${}_{1-x}$Mn${}_x$N

Abstract

Using density functional theory, we study the magnetic stability of the Ga${}_{1-x}$Mn${}_x$N alloy system. We show that unlike Ga${}_{1-x}$Mn${}_x$As, which shows only ferromagnetic (FM) phase, Ga${}_{1-x}$Mn${}_x$N can be stable in either FM or antiferromagnetic phases depending on the alloy concentration. The magnetic order can also be altered by applying pressure or with charge compensation. A unified model is used to explain these behaviors.

4 pages, 4 figures

References in corpus (3)

• Electronic structure and magnetism of Mn doped GaN
• On-site Coulomb interaction and the magnetism of (GaMn)N and (GaMn)As
• Self-interaction effects in (Ga,Mn)As and (Ga,Mn)N

Cited by in corpus (1)

• Enhanced Ferromagnetic Stability in Cu Doped Passivated GaN Nanowires