Magnetic Perovskites

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Magnetic Perovskites

Author : Asish K Kundu
ISBN : 9788132227618
Genre : Technology & Engineering
File Size : 42.73 MB
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Magnetic perovskite with multi functional properties (magneto-resistive, magneto-dielectric, multiferroics, spintronics, etc.) have attracted increasing attention due to their possible applications towards storage materials and intriguing fundamental Physics. Despite the numerous investigations on multi functional materials in the past few years, a very few magnetic perovskites have been known to realize as ferromagnetic-insulators. In perovskites centred transition metal oxides strong interplay between lattice, charge, spin and/or orbital degrees of freedom provide a fantastic playground to tune their physical properties. The main purpose of this book is to introduce the phenomenon and physics of complex magnetism (phase separation, spin glass, frustrations, etc.) in perovskite manganites and cobaltites via an experimental approach. The book is organized into four chapters; Chap. 1 gives a brief introduction of various interesting phenomena in magnetic perovskites. Chapter 2 describes the results of the investigations on electronic phase separation and glassy ferromagnetism of the hole-doped perovskite manganites and cobaltites. Ordered and disordered effects and related aspects in hole-doped perovskite cobaltites are described in Chap. 3. Finally, in Chap. 4 the bismuth based magnetic perovskite is discussed.
Category: Technology & Engineering

Perovskites

Author : Richard J. D. Tilley
ISBN : 9781118935637
Genre : Technology & Engineering
File Size : 80.6 MB
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Uniquely describes both the crystallography and properties of perovskite related materials. Practical applications in solar cells, microelectronics and telecommunications Interdisciplinary topic drawing on materials science, chemistry, physics, and geology Contains problems and answers to enhance knowledge retention
Category: Technology & Engineering

Revolution Of Perovskite

Author : Narayanasamy Sabari Arul
ISBN : 9789811512674
Genre : Technology & Engineering
File Size : 74.90 MB
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This volume presents advanced synthesis techniques for fabricating Perovskite materials with enhanced properties for applications such as energy storage devices, photovoltaics, electrocatalysis, electronic devices, photocatalysts, sensing, and biomedical instruments. The book attempts to fill a gap in the published literature and provide a detailed reference on Perovskite materials. This book will be of use to graduate students and academic and industrial researchers in the fields of solid-state chemistry, physics, materials science, and chemical engineering.
Category: Technology & Engineering

Engineering Magnetic Dielectric And Microwave Properties Of Ceramics And Alloys

Author : Charanjeet Singh
ISBN : 9781644900383
Genre : Technology & Engineering
File Size : 63.48 MB
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New research on the magnetic, dielectric and microwave properties of promising materials for domestic, industrial, military and medical applications are presented, with focus on biomaterials, ferrites, Ni-Fe alloys, capacitors, multiferroics, microwave absorbers and perovskite materials. Special emphasis is placed on bioceramics for orthopedic applications; classification of biomaterials; bioactive glass systems; preparation, properties and applications of PbFe12O19 hexaferrites; Ni-Fe alloys for shielding electronic devices from external magnetostatic fields; the role of multiferroics in spintronics field; design of microwave absorbers and absorption characteristics of ceramics.
Category: Technology & Engineering

Fundamentals Of Perovskite Oxides

Author : Gibin George
ISBN : 9781000195682
Genre : Technology & Engineering
File Size : 29.22 MB
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This textbook entitled Fundamentals of Perovskite Oxides: Synthesis, Structure, Properties and Applications summarizes the structure, synthesis routes, and potential applications of perovskite oxide materials. Since these perovskite-type ceramic materials offer opportunities in a wide range of fields of science and engineering, the chapters are broadly organized into four sections of perovskite-type oxide materials and technology. Covers recent developments in perovskite oxides Serves as a quick reference of perovskite oxides information Describes novel synthesis routes for nanostructured perovskites Discusses comprehensive details for various crystal structures, synthesis methods, properties, and applications Applies to academic education, scientific research, and industrial R&D for materials research in real-world applications like bioengineering, catalysis, energy conversion, energy storage, environmental engineering, and data storage and sensing This book serves as a handy and practical guideline suitable for students, engineers, and researchers working with advanced ceramic materials.
Category: Technology & Engineering

Advances In Solid State Physics

Author : Bernhard Kramer
ISBN : 9783540449461
Genre : Science
File Size : 72.50 MB
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The 2001 Spring Meeting of the 65th Deutsche Physikalische Gesellschaft was held together with the 65. Physikertagung, in Hamburg, during the pe riod March 26 30 2001. With more than 3500 conference attendees, a record has again been achieved after several years of stabilisation in participation. This proves the continuing and now even increasing, attraction of solid state physics, especially for young colleagues who often discuss for the first time their scientific results in public at this meeting. More than 2600 scientific pa pers were presented orally, as well as posters, among them about 120 invited lectures from Germany and from abroad. This Volume 41 of "Advances in Solid State Physics" contains the written versions of half of the latter. We nevertheless hope that the book truly reflects the current state of the field. Amazingly enough, the majority of the papers as well as the discussions at the meeting, concentrated on the nanostructured solid state. This re flects the currently extremely intensive quest for developing the electronic and magnetic device generations of the future, which stimulates science be sides the challenge of the unknown as has always been the case since the very beginning of Solid State Physics about 100 years ago.
Category: Science

Properties Of Perovskites And Other Oxides

Author : Karl A. Mller
ISBN : 9789814317696
Genre : Science
File Size : 54.84 MB
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In this book some 50 papers published by K A Mšller as author or co-author over several decades, amplified by more recent work mainly by T W Kool with collaborators, are reproduced. The main subject is Electron Paramagnetic Resonance (EPR) applied to the study of perovskites and other oxides with related subjects. This wealth of papers is organized into eleven chapters, each with an introductory text written in the light of current understanding. The contributions of the first editor on structural phase transitions have been immense, and because K A Mšller and J C Fayet have published a review paper on the subject, the latter is reproduced in chapter VII. Not related to EPR is a part of chapter VIII on the dipolar and quantum paraelectric behavior with dielectric studies. in chapter X two papers proving the existence of Fermi glasses are reproduced. The year 1986 bears some significance: early in this year the paper by Bednorz and Mšller on the possible observation of superconductivity was published. This resulted in a substantial shift in the paradigm of condensed matter physics, to which the present first editor has contributed scientifically with others and which will be reviewed in a second volume.
Category: Science

Electronic And Optical Properties Of D Band Perovskites

Author : Thomas Wolfram
ISBN : 9781139458252
Genre : Technology & Engineering
File Size : 32.2 MB
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The perovskite family of oxides includes a vast array of insulators, metals, and semiconductors. Current intense scientific interest stems from the large number of diverse phenomena exhibited by these materials including pseudo two-dimensional electronic energy bands, high temperature superconductivity, metal-insulator transitions, piezoelectricity, magnetism, photochromic, and catalytic activity. This book is the first text devoted to a comprehensive theory of the solid-state properties of these fascinating materials. The text includes complete descriptions of the important energy bands, photoemission, surface states, and the chapter on high-temperature superconductors explores the electronic states in typical copper-oxide materials. Theoretical results are compared to experiment and discussed throughout the book. With problem sets included, this is a unified, logical treatment of fundamental perovskite solid-state chemistry which will appeal to graduate students and researchers alike.
Category: Technology & Engineering

Mixed Ionic Electronic Conducting Perovskites For Advanced Energy Systems

Author : Nina Orlovskaya
ISBN : 1402019440
Genre : Technology & Engineering
File Size : 31.67 MB
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Advanced mixed ionic electronic conducting (MIEC) perovskites play an important role in many electrochemical systems for advanced energy technologies. They are major components in such devices as solid oxide fuel cells (SOFCs), oxygen separation membranes, chemical sensors and catalysts. In addition to energy technology, the development of these multifunctional materials is of crucial importance for transportation, aerospace engineering, and electronics. The use of these materials as chemical sensors is also important for anti-terrorism initiatives. The present book discusses progress and problems in the development of ionic, electronic, and MIEC materials as active materials in advanced energy systems; the development and design of solid-oxide fuel cells (SOFCs) for next-generation vehicles, chemical sensors and oxygen separation membranes; and identifies directions for future research, such as conducting mechanisms, stability and reliability of devices, degradation problems, crystal structure, classification of phase transitions exhibited by the materials.
Category: Technology & Engineering

New Insights Into The Phase Diagram Of A Magnetic Perovskite Laco1 3mn2 3o3

Author :
ISBN : OCLC:1053713872
Genre :
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Abstract: We report the crystal structure of the orthorhombic perovskite LaCo1/3 Mn2/3 O3 as determined by neutron diffraction from 5–300 K. A high-temperature x-ray diffraction study is also reported from 290–900 K. At temperatures above 570 K, LaCo1/3 Mn2/3 O3 transforms to a rhombohedral structure with space group . This rhombohedral phase is also observed in the material at high pressure and the crystal structure has been determined by in situ neutron diffraction at 4.7 GPa. Finally, the ferromagnetic behaviour has been determined by magnetometry and the magnetic structure has been determined using low temperature neutron diffraction at ambient pressure.
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Icame 2003

Author : M.E. Elzain
ISBN : 1402028210
Genre : Science
File Size : 33.99 MB
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Researchers and graduate students interested in the Mössbauer Effect and its Application will find this volume of the Hyperfine Interactions Journal indispensable. The volume presents the most recent developments in the methodology of Mössbauer spectroscopy; it covers the progress in the understanding of the more recent fields of nanoparticles, nanowires, multilayers and superlattices, surfaces and interfaces. In addition, the traditional areas of applications in physics, chemistry, biology, medicine, earth science, mineralogy, archaeology, material science, thin films, metallurgy and industrial applications like corrosion and catalysis are well presented. The contributions include theoretical treatments using ab initio calculations, molecular simulations as well as experimental results utilizing techniques like transmission spectroscopy, CEMS and nuclear resonance scattering.
Category: Science

Frontiers In Magnetic Materials

Author : A. V. Narlikar
ISBN : 354024512X
Genre : Science
File Size : 23.32 MB
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Spin Ladders and Spin Chains.- Probing Magnetic Phases in Different Systems.- Spin Glasses; From the Roots to the Present.- Magnetism in Nanostructures.- Surface and Interface Magnetism on the Atomic Scale.- Spectroscopy of Quantum Antiferromagnets.- Modern Methods for Investigating Magnetism.- Low Dimensionalmagnetism in Transition Metal Oxyborates.- Finite Temperature Half-metallic Ferromagnets.- Charge Order in Doped and Self-doped Oxides: Present Pictures.- Magnetic Tunnel Junctions Based on Half Metallic Oxides.- SrCu2 (BO3)2- a 2D Spin Gap Material.- Magnetism in Quantum Spin Systems.- Chemistry Aspects of Double Perovskites.- Magnetism in Carbon based Materials.- Microstructure Studies of Manganites by Lorentz-TEM Technique.- Local-Moment Systems: Ferromagnetism and Electronic Correlations.- Magnetism of Heavy Electron Materials.- Commenturate and Incommensurate Magnetism in Layered Antiferromagnets.- Single Crystals of Manganites and Related Materials.- Collossal Magnetoresistance and the Physics of Thin Maganite.- Dilute Magnetic Semiconductors.- Layed Co Oxides as a Thermoelectric Material.- New Magnetic Systems Exhibiting Superconductivity
Category: Science

Nano Crystalline And Thin Film Magnetic Oxides

Author : Ivan Nedkov
ISBN : 0792358724
Genre : Science
File Size : 22.56 MB
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Proceedings of the NATO Advanced Research Workshop on Ferrimagnetic Nano-crystalline and Thin Film Magnetooptical and Microwave Materials, Sozopol, Bulgaria, 27 September - 3 October, 1998
Category: Science

Frontiers In Magnetism Of Reduced Dimension Systems

Author : Victor G. Bar'yakhtar
ISBN : 079235026X
Genre : Science
File Size : 28.31 MB
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Frontiers in Magnetism of Reduced Dimension Systems presents a definitive statement of our current knowledge and the state of the art in a field that has yet to achieve maturity, even though there are a number of potential applications of thin magnetic films and multilayers, such as magnetic sensors, data storage/retrieval media, actuators, etc. The book is organized into 13 chapters, each including a lecture and contributed papers on a similar subject. Five chapters deal with theoretical descriptions of electron transport phenomena, relaxation processes, nonlinear paramagnetic interactions, phase transitions and macroscopic quantum effects in magnetic films and particles. The description of different characterization techniques occupies an important place in the book. Separate chapters are dedicated to magnetic resonances (FMR, SWR, NMR), magneto-optical spectroscopy, controlling chaos, magnetoelastic phenomena and magnetic resonance force microscopy. A further chapter gives a detailed review, spread over a number of papers, of materials in current use in information storage devices.
Category: Science

Solid State Chemistry

Author : Aaron Wold
ISBN : 0412036215
Genre : Science
File Size : 36.33 MB
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The subject matterofsolid state chemistry lies within the spheres ofboth physical and inorganic chemistry. In addition, there is a large overlap with solid state physics and materials engineering. However, solid state chemistry has still to be recognized by the general body ofchemists as a legitimate subfield ofchemistry. The discipline is not even well defined as to content and has many facets that make writing a textbook a formidable task. The early studies carried out in the United States by Roland Ward and his co workers emphasized the synthesisofnew materials and the determination oftheir structure. His work on doped alkaline earth sulfides formed the basis for the development of infrared phosphors and his pioneering studies on oxides were important in understanding the structural features of both the perovskite oxides as well as the magnetoplumbites. In 1945, A. F. Wells published the first edition of Structural Inorganic Chemistry. This work attempts to demonstrate that the synthesis, structure, and properties of solids form an important part of inorganic chemistry. Now, after almost 50 years during which many notable advances have been made in solid state chemistry, it is still evident that the synthesis, structure determination, and properties of solids receive little attention in most treatments of inorganic chemistry. The development of the field since the early studies of Roland Ward (early 1940s) has been rapid.
Category: Science

Defects And Surface Induced Effects In Advanced Perovskites

Author : Gunnar Borstel
ISBN : 0792362160
Genre : Science
File Size : 82.59 MB
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Complex oxide materials, especially the ABO3-type perovskite materials, have been attracting growing scientific interest due to their unique electro-optical properties, leading to photorefractive effects that form the basis for such devices as holographic storage, optical data processing and phase conjugation. The optical and mechanical properties of non-metals are strongly affected by the defects and impurities that are unavoidable in any real material. Nanoscopically sized surface effects play an important role, especially in multi-layered ABO3 structures, which are good candidates for high capacity memory cells. The 51 papers presented here report the latest developments and new results and will greatly stimulate progress in high-tech technologies using perovskite materials.
Category: Science

Smart Materials For Ranging Systems

Author : Jaap Franse
ISBN : 1402046448
Genre : Science
File Size : 42.8 MB
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This book considers the different aspects of materials with specific magnetic, electric and elastic properties. They are considered in view of potential application in the design and manufacturing of smart materials. Modern smart materials play a key role at investigations in interdisciplinary materials sciences and are serving to forge new links between basic and applied research. Progress is reported in the fabrication and understanding of in-situ formation and characterization of solid state structures with specified properties.
Category: Science