Carrier-induced ferromagnetism in p-Zn1-xMnxTe

Abstract

We present a systematic study of the ferromagnetic transition induced by the holes in nitrogen doped Zn1-xMnxTe epitaxial layers, with particular emphasis on the values of the Curie-Weiss temperature as a function of the carrier and spin concentrations. The data are obtained from thorough analyses of the results of magnetization, magnetoresistance and spin-dependent Hall effect measurements. The experimental findings compare favorably, without adjustable parameters, with the prediction of the Rudermann-Kittel-Kasuya-Yosida (RKKY) model or its continuous-medium limit, that is, the Zener model, provided that the presence of the competing antiferromagnetic spin-spin superexchange interaction is taken into account, and the complex structure of the valence band is properly incorporated into the calculation of the spin susceptibility of the hole liquid. In general terms, the findings demonstrate how the interplay between the ferromagnetic RKKY interaction, carrier localization, and intrinsic antiferromagnetic superexchange affects the ordering temperature and the saturation value of magnetization in magnetically and electrostatically disordered systems.

14 pages, 10 figures

References in corpus (3)

• Quantum Computation with Quantum Dots
• Interlayer coupling in ferromagnetic semiconductor superlattices
• Monte Carlo Simulations of Doped, Diluted Magnetic Semiconductors - a System with Two Length Scales

Cited by in corpus (47)

• Hole-mediated ferromagnetism in tetrahedrally coordinated semiconductors
• Ferromagnetism in semiconductors and oxides: prospects from a ten years' perspective
• Theory of ferromagnetic (III,Mn)V semiconductors
• Dilute ferromagnetic semiconductors: Physics and spintronic structures
• Ferromagnetic semiconductors
• Magnetic Cluster Excitations
• Light and electric field control of ferromagnetism in magnetic quantum structures
• Spin-polarized Zener tunneling in (Ga,Mn)As
• Spin-related magnetoresistance of n-type ZnO:Al and Zn_{1-x}Mn_{x}O:Al thin films
• Disorder effects in diluted magnetic semiconductors
• Origin of ferromagnetic response in diluted magnetic semiconductors and oxides
• Low temperature ferromagnetic properties of the diluted magnetic semiconductor Sb2-xCrxTe3
• Theory of carrier mediated ferromagnetism in dilute magnetic oxides
• Ferromagnetism of magnetic semiconductors--Zhang-Rice limit
• Magnetic domains in III-V magnetic semiconductors
• Ferromagnetism mediated by few electrons in a semimagnetic quantum dot
• Interplay between carrier localization and magnetism in diluted magnetic and ferromagnetic semiconductors
• Probing hole-induced ferromagnetic exchange in magnetic semiconductors by inelastic neutron scattering
• Chemical trend of exchange couplings in diluted magnetic II-VI semiconductors
• K and Mn co-doped BaCd2As2: a hexagonal structured bulk diluted magnetic semiconductor with large magnetoresistance
• Ferromagnetic (Ga,Mn)N epilayers versus antiferromagnetic GaMn${}_3$N clusters
• Robust Magnetic Polarons in Type-II (Zn,Mn)Te Quantum Dots
• Ferromagnetic Double Perovskite Semiconductors with Tunable Properties
• An Intermediate Phase at the Metal-Insulator Boundary in a Magnetically Doped Two-Dimensional Electron System
• A Tunable Anomalous Hall Effect in a Non-Ferromagnetic System
• Momentum-resolved spin splitting in Mn-doped trivial CdTe and topological HgTe semiconductors
• Ferromagnetism below 10 K in Mn doped BiTe
• Ferromagnetic GaMnAs/GaAs superlattices - MBE growth and magnetic properties
• Precise tuning of the Curie temperature of (Ga,Mn)As-based magnetic semiconductors by hole compensation: Support for valence-band ferromagnetism
• Carrier-mediated ferromagnetic ordering in Mn ion-implanted p+GaAs:C
• Suppression of carrier induced ferromagnetism by composition and spin fluctuations in diluted magnetic semiconductors
• Hysteresis in the magneto-transport of Manganese-doped Germanium: evidence for carrier-mediated ferromagnetism
• Superexchange dominates in magnetic topological insulators
• Spin order manipulations in nanostructures of II-VI ferromagnetic semiconductors
• Optical properties of single ZnTe nanowires grown at low temperature
• Anomalous Hall resistance in Ge:Mn systems with low Mn concentrations
• Low-Dilution Limit of Zn_{1-x}Mn_{x}GeAs_{2}: electrical and magnetic properties
• The importance of hole concentration in establishing carrier-mediated ferromagnetism in Mn doped Ge
• Sr${}_{0.9}$K${}_{0.1}$Zn${}_{1.8}$Mn${}_{0.2}$As${}_2$: a ferromagnetic semiconductor with colossal magnetoresistance
• Magnetic properties of wurtzite (Ga,Mn)As
• Magnetic interactions in a proposed diluted magnetic semiconductor (Ba${}_{\text{1-x}}$K${}_{\text{x}}$)(Zn${}_{\text{1-y}}$Mn${}_{\text{y}}$)${}_{\text{2}}$P${}_{\text{2}}$
• Carrier-induced ferromagnetism in 2D magnetically-doped semiconductor structures
• p-type codoping effect in (Ga,Mn)As: Mn lattice location versus magnetic properties
• Long range superexchange - an exchange interaction through empty bands
• RKKY interaction in Mn-doped 4 $\times$ 4 Luttinger systems
• Nearest-neighbour antiferromagnetic interaction as a limiting factor for critical temperature in model DMS system
• From narrow-gap and semimagnetic semiconductors to spintronics and topological matter: a life with spins