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Showing 1 to 14 of 14 for “"multiferroic materials"”.
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Synthesis and characterisation of Aurivillius phase materials
Multiferroic materials, which are materials that exhibit two or more ‘ferro’ orders in a single phase, such as both ferroelectricity and ferromagnetism in the same phase, are an attractive area of research due to their novel properties and potential uses. Emerging areas of research for multiferroic …
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Static and Dynamical Properties of Multiferroics
… including the applications of functional materials in the design and enhancement of novel devices such as sensors, highly capable data storage media, actuators, transducers, and several other types of electronic tools. In the last two decades, a class of functional materials known as …
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Synthesis and characterisation of materials with potential multiferroic behaviour
… method was used to produce Aurivillius phase materials, B i \(_3\)NbTiO\(_9\) and Bi\(_4\)Ti\(_3\)O\(_1\)\(_2\). Unit cell structures have been determined to be of A2\(_1\)am and Fmmm symmetry, respectively. In addition, the fractional co-ordinates of the constituent atoms has been calculated …
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Magnetoelectric Oxide Nanocomposite Heterostructures
Multiferroics have attracted lots of research interest due to their potential in numerous multifunctional applications. The multiferroic materials could simultaneously exhibit two or more ferroic order parameters, and the coupling effects between ferroelectricity and ferromagnetism are named as …
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Design of robust spin-transfer torque magnetic random access memories for ultralow power high performance on-chip cache applications
… been experimentally demonstrated that a class of materials called multiferroics can enable manipulation of magnetization using electric fields via magnetoelectric effects. A read assist technique using an MTJ structure incorporating multiferroic materials is proposed and analyzed. It was found …
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Magnetoelectric Thin Film Heterostructures and Electric Field Manipulation of Magnetization
… of one order through the other in miniaturized materials, and in so doing stimulate emerging technologies such as spintronics, magnetic sensors, quantum electromagnets and information storage. By growing ferromagnetic-ferroelectric heterostructures that are able to magneto-electrically couple …
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Vertically and Horizontally Self-assembled Magnetoelectric Heterostructures with Enhanced Properties for Reconfigurable Electronics
Magnetoelectric (ME) materials are attracting increasing attention due to the achievable reading/writing source (electric field and magnetic field in most cases), fast response time, and larger storage density. Therefore, nanocomposites featuring both magnetostriction and piezoelectricity were …
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Structure-Property Relations on Strain-Mediated Multiferroic Heterostructures
Multiferroic thin-film heterostructures have attracted a great deal of attention due to the increasing demand for novel energy-efficient micro/nano-electronic devices. Both single phase multiferroic materials like BiFeO3 (BFO) thin films, and strain-mediated magnetoelectric (ME) nanocomposites, …
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Two phase magnetoelectric epitaxial composite thin films
… can be found both in single phase and composite materials. Compared with single phase multiferroic materials, composite multiferroics have higher ME effects. Through a strictive interaction between the piezoelectricity of the ferroelectric phase and the magnetostriction of the ferromagnetic …
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Structure-property correlations in compositionally complex ferroelectrics
… to electrical energy storage systems. These materials show nanoscale chemical and structural heterogeneity that make finding the origin of their exceptional properties a seemingly intractable problem. Here, I utilize STEM to quantify various types of nanoscale heterogeneities and determine …
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Probing Coherent States and Nonlinear Properties in Multifunctional Material Systems
… on developing new and improved multifunctional materials, for optoelectronic and spin based phenomena/devices, have increased the importance of the fundamental understanding of their coherent states and nonlinear optical properties. This study is aimed at characterizing, modeling, and …
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Surface Acoustic Waves Propagation and Coupling Fields in Piezomagnetic and Piezoelectric Semiconductor Layered Structures
Piezoelectric semiconductors (PSs) are functional materials with both piezoelectric and semiconductor properties. The core property of PSs is the multi-field coupling effect of mechanical-electro-carrier, and its multiple properties are adapting to the needs of the rapid development of electronic …
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Quantitative off-axis Electron Holography and (multi-)ferroic interfaces
A particularly interesting class of modern materials is ferroic ceramics. Their characteristic order parameter is a result of quantum chemistry taking place on a sub-Å length scale and long-range couplings, e.g. mediated by electrostatic or stress fields. Furthermore, the particular subclass of …
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Ab initio investigation of layered and low-symmetry oxides and interfaces: multiferroic junctions, TCO’s, and a ferroelectric metal.
… al ulations for studying di erent types of materials aimed to te h- nologi al appli ations. First, it deals with the study of the tunneling magneto-resistan e and interfa e magneto- ele tri e e ts of the SrRuO3/PbTiO3/SrRuO3 multi-ferroi tunnel jun tion (MFTJ) with asymmetri interfa es, by …