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Rhombohedral PZT Thin Films Prepared by Sputtering
PZT thin films with a rhombohedral perovskite structure were successfully grown on (111) PLT/Pt/Ti/SiO2/Si and (111) Ir/SiO2/Si substrates. The...
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Correlation Between Domain Structures and Dielectric Properties in Single Crystals of Ferroelectric Solid Solutions
In the present chapter, the growth of single crystals in relaxor–PbTiO3 (PT) solid solution system by the flux method and the solution Bridgman...
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Relaxor Superlattices: Artificial Control of the Ordered–Disordered State of B-Site Ions in Perovskites
We have developed a new superlattice technique to artificially control the B-site ordering state. The technique has been applied to Ba(Zr0.2Ti0.8)O3,...
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Pb-Based Ferroelectric Thin Films Prepared by MOCVD
This Chapter focuses on the preparation and ferroelectric properties of Pb-based thin films and nanostructures. First, the growth behavior of...
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Chemical Solution Depositionof Layer-Structured Ferroelectric Thin Films
Ferroelectric rare-earth-doped Bi4Ti3O12 thin films have been successfully prepared on Si-based substrates by using metallo-organic precursor...
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Magnetic Interactions in Granular Paramagnetic-Ferromagnetic GaAs:Mn/MnAs Hybrids
The paramagnetic-ferromagnetic hybrid structure with a Curie temperature above room temperature formed by metallic MnAs clusters embedded in a...
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Growth and Room Temperature Spin Polarization of Half-metallic Epitaxial CrO2 and Fe3O4 Thin Films
Potential applications of systems based on half-metallic ferromagnets (HMFs) in magneto- and spinelectronics including spin injectors, magnetic field...
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The Role of Interstitial Mn in GaAs-Based Dilute Magnetic Semiconductors
Ferromagnetic (Ga,Mn)As continues to be the subject of intense research due to the interesting physical properties and possible spin-electronics...
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Exchange Interactions and Magnetic Percolation in Diluted Magnetic Semiconductors
We propose a theory that combines first-principles evaluations of interatomic exchange interactions with a classical Heisenberg model and Monte Carlo...
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An Origin of CMR: Competing Phases and Disorder-Induced Insulator-to-Metal Transition in Manganites
We theoretically explore the mechanism of the colossal magnetoresistance in manganese oxides by explicitly taking into account the phase competition...
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Carrier Induced Ferromagnetism in Concentrated and Diluted Local-Moment Systems
For modeling the electronic and magnetic properties of concentrated and diluted magnetic semiconductors we use the s-f model (ferromagnetic...
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Growth and Magnetotransport Properties of Thin Co2MnGe Layered Structures
Co2MnGe and other related Heusler alloys are investigated in the context of magnetotransport properties in multilayer (ML) structures. The most...
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Domain-Wall Dynamicsin Magnetic Logic Devices
Domain walls propagate very well through magnetic nanowires and have been used to demonstrate a logic scheme in which the two stable magnetization...
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Domain-Wall Dynamics in Nanowiresand Nanostrips
In nanowires or nanostrips, the magnetic domain walls have structures that depend sensitively on the transverse sizes of these samples. These...
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Critical Behaviour of Heisenberg Ferromagnets with Dipolar Interactions and Uniaxial Anisotropy
In any real magnetic system, weak anisotropic long-range dipole-dipole interactions are invariably present besides crystal-field interactions and...
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Introduction
The phenomenon of spontaneous collective order of the magnetic moments in some solid materials (ferro-, ferri-, antiferromagnetism), still attracts...
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Half-Metals: Challenges in Spintronics and Routes Toward Solutions
The current status of half-metallicity is briefly reviewed. Three origins of half-metallicity are distinguished: In heusler C1b compounds covalent...
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Physics of Ferroelectric Interfaces: An Attempt at Nanoferroelectric Physics
Experiments on devices can be regarded as part of basic physics. Here, theoretical analyses of devices using the interface in a ferroelectric...
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Theoretical Aspects of Phase Transitions in Ferroelectric Thin Films
Phase transitions in ferroelectric thin films are discussed theoretically on the basis of the Tilley–Zeks model for the case where the transition is...
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Analysis of Ferroelectricity and Enhanced Piezoelectricity near the Morphotropic Phase Boundary
In this Chapter, we discuss the phase diagram, dielectric constants, elastic constants, piezoelectricity and polarization reversal in the vicinity of...