Controlled aggregation of magnetic ions in a semiconductor. Experimental demonstration

Abstract

The control on the distribution of magnetic ions into a semiconducting host is crucial for the functionality of magnetically doped semiconductors. Through a structural analysis at the nanoscale, we give experimental evidence that the aggregation of Fe ions in (Ga,Fe)N and consequently the magnetic response of the material are affected by growth rate and co-doping with shallow impurities.

4 pages, 3 figures

References in corpus (5)

• Origin and control of high-temperature ferromagnetism in semiconductors
• Origin and control of ferromagnetism in dilute magnetic semiconductors and oxides
• Paramagnetic GaN:Fe and ferromagnetic (Ga,Fe)N - relation between structural, electronic, and magnetic properties
• Hole states in wide band-gap diluted magnetic semiconductors and oxides
• Transmission electron microscopy investigation of segregation and critical floating-layer content of indium for island formation in InGaAs

Cited by in corpus (30)

• Ferromagnetism in semiconductors and oxides: prospects from a ten years' perspective
• Dilute ferromagnetic semiconductors: Physics and spintronic structures
• Spinodal nanodecomposition in magnetically doped semiconductors
• A story of high-temperature ferromagnetism in semiconductors
• Structural and paramagnetic properties of dilute Ga1-xMnxN
• Families of magnetic semiconductors -- an overview
• Experimental probing of exchange interactions between localized spins in the dilute magnetic insulator (Ga,Mn)N
• Aggregation and magnetism of Cr, Mn, and Fe cations in GaN
• Embedded magnetic phases in (Ga,Fe)N: the key role of growth temperature
• Local structure of (Ga,Fe)N and (Ga,Fe)N:Si investigated by x-ray absorption fine structure spectroscopy
• Optimization of Mn Doping in Group-IV-based Dilute Magnetic Semiconductors by Electronic Co-dopants
• Spinel ferrite nanocrystals embedded inside ZnO: magnetic, electronic and magneto-transport properties
• Strain-Induced Extrinsic High-Temperature Ferromagnetism in the Fe-Doped Hexagonal Barium Titanate
• Experimental determination of Rashba spin-orbit coupling in wurtzite $n$-GaN:Si
• Ferromagnetism of cobalt-doped anatase TiO${}_2$ studied by bulk- and surface-sensitive soft x-ray magnetic circular dichroism
• Formation process and superparamagnetic properties of (Mn,Ga)As nanocrystals in GaAs fabricated by annealing of (Ga,Mn)As layers with low Mn content
• Diffusion of Mn in gallium nitride: Experiment and modelling
• The Fe-Mg interplay and the effect of deposition mode in (Ga,Fe)N doped with Mg
• Intrinsic paramagnetism and aggregation of manganese dopants in SrTiO${}_3$
• Instability types at ion-assisted alloy deposition: from two-dimensional to three-dimensional nanopattern growth
• Planar arrays of magnetic nanocrystals embedded in GaN
• Element specific characterization of heterogeneous magnetism in (Ga,Fe)N films
• Structural and Magnetic Characteristics of MnAs Nanoclusters Embedded in Be-doped GaAs
• Magnetotransport in phase-separated (Ga,Fe)N with $\gamma$'-Ga${}_y$Fe${}_{4-y}$N nanocrystals
• Core-shell nanostructure in a Ge_0.9Mn_0.1 film from structural and magnetic measurements
• Relation between exciton splittings, magnetic circular dichroism, and magnetization in wurtzite (Ga,Fe)N
• 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
• X-ray magnetic circular dichroism in (Ge,Mn) compounds: experiments and modeling
• From narrow-gap and semimagnetic semiconductors to spintronics and topological matter: a life with spins