Wurtzite (Ga,Mn)As nanowire shells with ferromagnetic properties

Abstract

(Ga,Mn)As in wurtzite crystal structure, is coherently grown by molecular beam epitaxy on the {1100} side facets of wurtizte (Ga,In)As nanowires and further encapsulated by (Ga,Al)As and low temperature GaAs. For the first time a true long-range ferromagnetic magnetic order is observed in non-planar (Ga,Mn)As, which is attributed to a more effective hole confinement in the shell containing Mn by a proper selection/choice of both the core and outer shell materials.

13 pages, 7 figures

References in corpus (6)

• Interplay between carrier localization and magnetism in diluted magnetic and ferromagnetic semiconductors
• Weak localization in ferromagnetic (Ga,Mn)As nanostructures
• All-wurtzite (In,Ga)As-(Ga,Mn)As core-shell nanowires grown by molecular beam epitaxy
• Diffusion and clustering of substitutional Mn in (Ga,Mn)As
• Electron-electron interaction in 2D and 1D ferromagnetic (Ga,Mn)As
• The Mn site in Mn-doped Ga-As nanowires: an EXAFS study

Cited by in corpus (2)

• Enhanced ferromagnetism in cylindrically confined MnAs nanocrystals embedded in wurtzite GaAs nanowire shells
• In Situ Compensation Method for Precise Integral SQUID Magnetometry of Miniscule Biological, Chemical, and Powder Specimens Requiring the Use of Capsules