Temperature Dependent Magnetic Anisotropy in (Ga,Mn)As Layers

Abstract

It is demonstrated by SQUID measurements that (Ga,Mn)As films can exhibit perpendicular easy axis at low temperatures, even under compressive strain, provided that the hole concentration is sufficiently low. In such films, the easy axis assumes a standard in-plane orientation when the temperature is raised towards the Curie temperature or the hole concentration is increased by low temperature annealing. These findings are shown to corroborate quantitatively the predictions of the mean-field Zener model for ferromagnetic semiconductors. The in-plane anisotropy is also examined, and possible mechanisms accounting for its character and magnitude are discussed.

7 pages, 5 Postscript figures, uses revtex4

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Cited by in corpus (57)

• Theory of ferromagnetic (III,Mn)V semiconductors
• Dilute ferromagnetic semiconductors: Physics and spintronic structures
• Prospects of high temperature ferromagnetism in (Ga,Mn)As semiconductors
• In-plane uniaxial anisotropy rotations in (Ga,Mn)As thin films
• Reorientation Transition in Single-Domain (Ga,Mn)As
• Origin and control of ferromagnetism in dilute magnetic semiconductors and oxides
• Anisotropic Magnetoresistance and Magnetic Anisotropy in High-quality (Ga,Mn)As Films
• Control of magnetic anisotropy in (Ga,Mn)As by lithography-induced strain relaxation
• Perpendicular magnetization reversal, magnetic anisotropy, multi-step spin switching, and domain nucleation and expansion in Ga1-xMnxAs films
• Magneto crystalline anisotropies in (Ga,Mn)As: A systematic theoretical study and comparison with experiment
• Piezo-control of magnetic anisotropy in GaMnAs: Reversible manipulation of magnetization orientation and irreversible magnetization switching
• Quantum-size effect and tunneling magnetoresistance in ferromagnetic-semiconductor quantum heterostructures
• Magnetic properties and domain structure of (Ga,Mn)As films with perpendicular anisotropy
• Strain-Control of the magnetic anisotropy in (Ga,Mn)(As,P) ferromagnetic semiconductor layers
• Origin of bulk uniaxial anisotropy in zinc-blende dilute magnetic semiconductors
• Advanced resistivity model for arbitrary magnetization orientation applied to a series of compressive- to tensile-strained (Ga,Mn)As layers
• Spin-dependent tunneling in modulated structures of (Ga,Mn)As
• Evolution of the magnetic anisotropy with carrier density in hydrogenated (Ga,Mn)As
• Tuning the ferromagnetic properties of hydrogenated GaMnAs
• Stretching magnetism with an electric field in a nitride semiconductor
• Theory of magnetization precession induced by a picosecond strain pulse in ferromagnetic semiconductor (Ga,Mn)As
• Magnetic anisotropy switching in (Ga,Mn)As with increasing hole concentration
• Determination of the micromagnetic parameters in (Ga,Mn)As using domain theory
• Electrical transport and ferromagnetism in Ga1-xMnxAs synthesized by ion implantation and pulsed-laser melting
• Magnetic anisotropy of epitaxial (Ga,Mn)As on (113)A GaAs
• Theory of spin waves in ferromagnetic (Ga,Mn)As
• Characterization of magnetostatic surface spin waves in magnetic thin films: evaluation for microelectronic applications
• Nonreciprocity engineering in magnetostatic spin waves
• Spin-transfer physics and the model of ferromagnetism in (Ga,Mn)As
• An extensive comparison of anisotropies in MBE grown (Ga,Mn)As material
• Magnetocrystalline anisotropy and magnetization reversal in GaMnP synthesized by ion implantation and pulsed-laser melting
• External control of the direction of magnetization in ferromagnetic InMnAs/GaSb heterostructures
• Mechanical and Electronic Properties of Ferromagnetic GaMnAs Using Ultrafast Coherent Acoustic Phonons
• Cubic anisotropy in high homogeneity thin (Ga,Mn)As layers
• In-plane to perpendicular magnetic anisotropy switching in heavily-Fe-doped ferromagnetic semiconductor (Ga,Fe)Sb with high Curie temperature
• High Curie temperature and perpendicular magnetic anisotropy in homoepitaxial InMnAs films
• AMR and magnetometry studies of ultra thin GaMnAs films
• Non-thermal photocoercivity effect in a ferromagnetic semiconductor
• Dynamic relaxation of magnetic clusters in a ferromagnetic (Ga,Mn)As epilayer
• Anisotropic spin distribution and perpendicular magnetic anisotropy in the layered ferromagnetic semiconductor (Ba,K)(Zn,Mn)${}_2$As${}_2$
• Tuning perpendicular magnetic anisotropy in (Ga,Mn)(As,P) by thermal annealing
• Phenomenological theory of magnetization reversal in nanosystems with competing anisotropies
• Surface morphology and magnetic anisotropy in (Ga,Mn)As
• Bound hole states in a ferromagnetic (Ga,Mn)As environment
• Effect of the shape anisotropy on the magnetic configuration of (Ga,Mn)As and its evolution with temperature
• Nonlocal effects on magnetism in the diluted magnetic semiconductor Ga_{1-x}Mn_{x}As
• A single layer of Mn in a GaAs quantum well: a ferromagnet with quantum fluctuations
• DFT calculations of magnetic anisotropy energy for GeMnTe ferromagnetic semiconductor
• A comprehensive study of the magnetic, structural and transport properties of the III-V ferromagnetic semiconductor InMnP
• Influence of the different strains components on the uniaxial magnetic anisotropy constants for (Ga,Mn)As bulk system: a First-Principles Study
• Manipulation of the magnetic configuration of (Ga,Mn)As nanostructures
• Bismuth doping induced enhancement of the spin-orbit coupling strength in the prototype dilute ferromagnetic semiconductor (Ga,Mn)As: a review
• Nature of the Perpendicular-to-Parallel Spin Reorientation in a Mn-doped GaAs Quantum Well: Canting or Phase Separation?
• Hard X-ray Photoelectron Momentum Microscopy and Kikuchi Diffraction on (In,Ga,Mn)As Thin Films
• Hole compensation effect in III-Mn-V dilute ferromagnetic semiconductors
• Lateral magnetic anisotropy superlattice out of a single (Ga,Mn)As layer
• From narrow-gap and semimagnetic semiconductors to spintronics and topological matter: a life with spins