Planar arrays of magnetic nanocrystals embedded in GaN

Abstract

Single planar arrays of Ga(x)Fe(4-x)N magnetic nanocrystals embedded in GaN have been fabricated in an epitaxial process. The phase of the nanocrystals and their epitaxial relationship with the host matrix are studied $via$ high-resolution transmission electron microscopy and high-resolution x-ray diffraction. By changing the growth parameters and mode, the crystallographic phase and chemical composition of the nanocrystals can be varied on demand. In view of the different magnetic properties of the various phases, applications in room-temperature ferromagnetic as well as antiferromagnetic spintronic devices are envisaged.

5 pages, 3 figures

References in corpus (7)

• Origin and control of high-temperature ferromagnetism in semiconductors
• Spin-orbit coupling induced anisotropy effects in bimetallic antiferromagnets: A route towards antiferromagnetic spintronics
• A theoretical analysis on highly spin-polarized transport of iron nitride Fe_4N
• Paramagnetic GaN:Fe and ferromagnetic (Ga,Fe)N - relation between structural, electronic, and magnetic properties
• Controlled aggregation of magnetic ions in a semiconductor. Experimental demonstration
• Mapping between quantum dot and quantum well lasers: From conventional to spin lasers
• The Fe-Mg interplay and the effect of deposition mode in (Ga,Fe)N doped with Mg

Cited by in corpus (7)

• Spinodal nanodecomposition in magnetically doped semiconductors
• Homogenous and heterogeneous magnetism in (Zn,Co)O
• In situ compensation method for high-precision and high-sensitivity integral magnetometry
• Out-of-Plane Magnetic Anisotropy in Ordered Ensembles of Fe${}_y$N Nanocrystals Embedded in GaN
• Magnetotransport in phase-separated (Ga,Fe)N with $\gamma$'-Ga${}_y$Fe${}_{4-y}$N nanocrystals
• Characterization of Fe-N nano crystals and nitrogen-containing inclusions in (Ga,Fe)N thin films using transmission electron microscopy
• Planar array of self-assembled Ga${}_x$Fe${}_{4-x}$N nanocrystals in GaN: Magnetic anisotropy determined via ferromagnetic resonance