Spintronic oxides grown by laser-MBE

Abstract

The recent study of oxides led to the discovery of several new fascinating physical phenomena. High-temperature superconductivity, colossal magnetoresistance, dilute magnetic doping, or multiferroicity were discovered and investigated in transition-metal oxides, representing a prototype class of strongly correlated electronic systems. This development was accompanied by an enormous progress regarding thin film fabrication. Within the past two decades, epitaxial thin films with crystalline quality approaching semiconductor standards became available using laser molecular beam epitaxy. This evolution is reviewed, particularly with emphasis on transition-metal oxide thin films, their versatile physical properties, and their impact on the field of spintronics. First, the physics of ferromagnetic half-metallic oxides, such as the doped manganites, the double perovskites and magnetite is presented together with possible applications based on magnetic tunnel junctions. Second, the wide bandgap semiconductor zinc oxide is discussed particularly with regard to the controversy of dilute magnetic doping with transition-metal ions and the possibility of realizing p-type conductivity. Third, the field of oxide multiferroics is presented with the recent developments in single-phase multiferroic thin film perovskites as well as in composite multiferroic hybrids.

57 pages, 28 figures, 388 references, to appear in J. Phys. D: Appl. Phys

References in corpus (21)

• Ferromagnetism in semiconductors and oxides: prospects from a ten years' perspective
• Electric Field Control of the LaAlO${}_3$/SrTiO${}_3$ Interface Ground State
• Giant sharp magnetoelectric switching in multiferroic epitaxial La_{0.67}Sr_{0.33}MnO_3 on BaTiO_3
• Quantum transport theory of anomalous electric, thermoelectric, and thermal Hall effects in ferromagnets
• Oxide spintronics
• Origin and control of high-temperature ferromagnetism in semiconductors
• Two magnetic regimes in doped ZnO corresponding to a dilute magnetic semiconductor and a dilute magnetic insulator
• Voltage controlled inversion of magnetic anisotropy in a ferromagnetic thin film at room temperature
• Epitaxial Zn(x)Fe(3-x)O(4) Thin Films: A Spintronic Material with Tunable Electrical and Magnetic Properties
• Paramagnetism of the Co sublattice in ferromagnetic Zn${}_{1-x}$Co${}_x$O films
• Origin of the Verwey transition in magnetite: Group theory, electronic structure, and lattice dynamics study
• Effect of the s,p-d exchange interaction on the excitons in (Zn,Co)O epilayers
• Low-temperature, in situ tunable, uniaxial stress measurements in semiconductors using a piezoelectric actuator
• Magnetic and structural properties of GeMn films: precipitation of intermetallic nanomagnets
• Spin-glass-like behavior of Ge:Mn
• X-ray magnetic circular dichroism study of Re 5d magnetism in Sr2CrReO6
• Epitaxial thin films of the multiferroic double perovskite Bi2FeCrO6 grown on (100)-oriented SrTiO3 substrates: Growth, characterization, and optimization
• Nanosized superparamagnetic precipitates in cobalt-doped ZnO
• Anomalous Hall Effect in Magnetite: Universal Scaling Relation Between Hall and Longitudinal Conductivity in Low-Conductivity Ferromagnets
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Cited by in corpus (18)

• Quantitative study of the spin Hall magnetoresistance in ferromagnetic insulator/normal metal hybrids
• Atomically flat single terminated oxide substrate surfaces
• Laser molecular beam epitaxy of ZnO thin films and heterostructures
• Hard x-ray emission spectroscopy: a powerful tool for the characterization of magnetic semiconductors
• Zinc Oxide - From Dilute Magnetic Doping to Spin Transport
• Electronic structure and magnetic and optical properties of double perovskite Bi2FeCrO6 from first-principles investigation
• Spin transport and spin dephasing in zinc oxide
• Coherent X-ray measurement of step-flow propagation during growth on polycrystalline thin film surfaces
• Spin Hall Magnetoimpedance
• Growth, Properties, and Applications of Pulsed Laser Deposited Nanolaminate Ti3AlC2 Thin Films
• Promising ferrimagnetic double perovskite oxides towards high spin polarization at high temperature
• Pyroelectric detection of spontaneous polarization in magnetite thin films
• Exceptionally high saturation magnetisation in Eu-doped magnetite stabilised by spin-orbit interaction
• Giant Magnetoelastic Effects in BaTiO3-based Extrinsic Multiferroic Hybrids
• Static magnetic proximity effects and spin Hall magnetoresistance in Pt/Y${}_3$Fe${}_5$O${}_{12}$ and inverted Y${}_3$Fe${}_5$O${}_{12}$/Pt bilayers
• Superconductivity and charge carrier localization in ultrathin $\mathbf{L}{\mathbf{a}}_{1.85}\mathbf{S}{\mathbf{r}}_{0.15}\mathbf{Cu}{\mathbf{O}}_4/\mathbf{L}{\mathbf{a}}_2\mathbf{Cu}{\mathbf{O}}_4$ bilayers
• Bimodal island size distribution in heteroepitaxial growth
• On the influence of nanometer-thin antiferromagnetic surface layer on ferromagnetic CrO${}_2$