Download or read book Anomalous Remanent Magnetization of Basalt written by Allan Verne Cox and published by . This book was released on 1961 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of causes of anomalous magnetization with analysis of field and experimental data to show that lightning probably produced anomalous magnetization in basalts in Idaho.
Download or read book Electric Field Control of Magnetization and Electronic Transport in Ferromagnetic Ferroelectric Heterostructures written by Sen Zhang and published by Springer Science & Business Media. This book was released on 2014-04-10 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book mainly focuses on the investigation of the electric-field control of magnetism and spin-dependent transportation based on a Co40Fe40B20(CoFeB)/Pb(Mg1/3Nb2/3)0.7Ti0.3O3(PMN-PT) multiferroic heterostructure. Methods of characterization and analysis of the multiferroic properties with in situ electric fields are induced to detect the direct magnetoelectric (ME) coupling. A switchable and non-volatile electric field control of magnetization in CoFeB/PMN-PT(001) structures is observed at room temperature, and the mechanism of direct coupling between the ferroelectric domain and ferromagnetic film due to the combined action of 109° ferroelastic domain switching in PMN-PT and the absence of magnetocrystalline anisotropy in CoFeB is demonstrated. Moreover, the electric-field control of giant magnetoresistance is achieved in a CoFeB-based spin valve deposited on top of (011) oriented PMN-PT, which offers an avenue for implementing electric-writing and magnetic-reading random access memory at room temperature. Readers will learn the basic properties of multiferroic materials, many useful techniques related to characterizing multiferroics and the interesting ME effect in CoFeB/PMN-PT structures, which is significant for applications.
Download or read book Chemisorption and Magnetization written by P. W. Selwood and published by Elsevier. This book was released on 2012-12-02 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemisorption and Magnetization focuses on particle size determination and on the number of adsorbent atoms affected when any molecule is adsorbed on a surface. This book examines the adsorption of a molecule on the surface of a ferromagnetic solid that produces a change in the magnetization of the solid. Organized into 12 chapters, this book starts with an overview of the experimental methods used for studying chemisorption and magnetization, which are applicable in granulometry. This text then discusses the measurement of saturation magnetization in a ferromagnetic substance in the form of small particles. Other chapters consider the conditions in a typical nickel–silica hydrogenation catalyst. This text examines as well the magnetization at moderate fields and near room temperature. The final chapter deals with the properties and complexities of palladium, platinum, and nickel. Students and researchers interested in heterogeneous catalysis and related areas will find this book extremely useful.
Download or read book Magnetization of High Temperature Superconducting Trapped Field Magnets written by Zou, Shengnan and published by KIT Scientific Publishing. This book was released on 2017-12-01 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Science of Hysteresis Physical modeling micromagnetics and magnetization dynamics written by I. D. Mayergoyz and published by Gulf Professional Publishing. This book was released on 2006 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 1 covers: * Mathematical models * Differential equations * Stochastic aspects of hysteresis * Binary detection using hysteresis * Models of unemployment in economics Volume 2 covers: * Physical models of magnetic hysteresis * All aspects of magnetisation dynamics Volume 3 covers: * Hysteresis phenomena in materials * Over 2100 pages, rich with supporting illustrations, figures and equations * Contains contributions from an international list of authors, from a wide-range of disciplines * Covers all aspects of hysteresis - from differential equations, and binary detection, to models of unemployment and magnetisation dynamics.
Download or read book Nonlinear Magnetization Dynamics in Nanosystems written by Isaak D. Mayergoyz and published by Elsevier. This book was released on 2009-04-20 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: As data transfer rates increase within the magnetic recording industry, improvements in device performance and reliability crucially depend on the thorough understanding of nonlinear magnetization dynamics at a sub-nanoscale level. This book offers a modern, stimulating approach to the subject of nonlinear magnetization dynamics by discussing important aspects such as the Landau-Lifshitz-Gilbert (LLG) equation, analytical solutions, and the connection between the general topological and structural aspects of dynamics. An advanced reference for the study and understanding of nonlinear magnetization dynamics, it addresses situations such as the understanding of spin dynamics in short time scales and device performance and reliability in magnetic recording. Topics covered include nonlinear magnetization dynamics and the Landau-Lifshitz-Gilbert equation, nonlinear dynamical systems, spin waves, ferromagnetic resonance and pulsed magnetization switching. The book explains how to derive exact analytical solutions for the complete nonlinear problem and emphasises the connection between the general topological and structural aspects of nonlinear magnetization dynamics and the discretization schemes better suited to its numerical study. It is an exceptional research tool providing an advanced understanding of the study of magnetization dynamics in situations of fundamental and technological interest.
Download or read book Motor design for maximum material exploitation and magnetization procedure with in line quality check for mass production written by Dinca, Christian and published by Universitätsverlag der TU Berlin. This book was released on 2017-03-09 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: To reduce the amount of Rare-earth Elements in high efficient permanent magnet electric motors, the magnetic stray flux has to be reduced. Additonally, a temperature reduction inside the motor reduces the necessary amount of the so called Heavy Rare-earth Elements, which account for the bulk part of the magnet material costs. In this thesis a permanent magnet motor in wet rotor configuration for an automotive application is designed. It was shown that by simple thermal improvements of the electric insulation system the maximum temperature of the stator can be reduced. Extensive measurements on different combinations of insulation material of the stator and the development of a new thermal model for orthocyclic wound stators were performed. Due to the use of fiber cans eddy current losses could be eliminated and the stray flux minimized. In a second stage a magnetizing fixture was build up, which is able to magnetize the buried magnets inside the rotor. The rotor and the magnetizing fixture was developed, so that the magnets can be optimal magnetized. To check the quality of the magnets the magnetizing coil was developed in a way, such that the hysteresis curve of every single magnet during magnetization can be measured. Different magnets were tested and ways to calculate parasitics are given. Um die Menge an Selten Erden in hoch-effizienten permanent erregten Elektromotoren zu reduzieren, muss der magnetische Streufluss verringert werden. Eine Temperaturreduktion im Motor verringert zudem die nötige Menge an so genannten schweren Selten Erden, welche einen Großteil der Kosten der Magnetmaterialien ausmachen. In dieser Arbeit wird dazu ein permanent erregter Nassläufer für eine automotive Anwendung ausgelegt. Es konnte gezeigt werden, dass durch einfache Maßnahmen im Bereich der elektrischen Isolation die maximale Temperatur im Stator reduziert werden konnte. Umfangreiche Messungen an verschiedenen Kombinationen von elektrischen Isolationen des Stators und die Entwicklung eines neuen thermischen Models für orthozyklisch gewickelte Statoren wurden getätigt. Durch Einsatz von Spaltrohren aus Faserverbundwerkstoffen konnten die Wirbelstromverluste beseitigt werden und der Streufluss minimiert werden. In einem zweiten Schritt wurde eine Magnetisiervorrichtung aufgebaut, mit der die zu Anfang unmagnetisierten eingebetteten Magneten im Rotor aufmagnetisiert werden konnten. Der Rotor wurde zudem zusammen mit der Magnetisierungsspule so ausgelegt, dass die Magnete optimal magnetisiert werden können. Um die Qualität der Magnete zu testen wurde die Magnetisierspule zudem so ausgelegt, dass eine Messung der Hysteresekurve jedes einzelnen Magneten während der Magnetisierung möglich ist. Verschiedene Magnete wurden vermessen und Möglichkeiten zur Bestimmung von parasitären Effekten gegeben.
Download or read book Field Penetration and Magnetization of High Temperature Superconductors written by A. V. Narlikar and published by Nova Publishers. This book was released on 1995 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Visualisation of Shubnikov Phase Using the High Resolution Faraday Effect; Mechanism of microwave Absorption and Flux Distribution in High Temperature Superconductors; Field Penetration and Magnetisation of Hts; Experimental Aspects of Megnetisation Studies in Superconductors; Recent Development of the Critical State Model; Anomalous Magnetisation in Ybacuo Single Crystals; Surface Barrier and Fish Tail; Low Field Magnetic Behaviour of High Temperature Superconductors; Irreversible Part of Magnetisation Due to Flux Pinning; Irreversibility Line in High Temperature Superconductors; Non-Linear Flux Flow Regime High-Temperature Superconductors.
Download or read book Magnetization Dynamics of Nanostructured Ferromagnetic Rings and Rectangular Elements written by Fabian Giesen and published by Cuvillier Verlag. This book was released on 2005 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Magnetism and Magnetic Materials written by J. M. D. Coey and published by Cambridge University Press. This book was released on 2010-03-25 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: An essential textbook for graduate courses on magnetism and an important source of practical reference data.
Download or read book Magnetization Oscillations and Waves written by A.G. Gurevich and published by CRC Press. This book was released on 2020-12-17 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by two well-known researchers in the field, this useful reference takes an applied approach to high frequency processes including oscillations and waves in ferromagnets, antiferromagnets, and ferrimagnets. Problems evaluated include ferromagnetic and antiferromagnetic resonances, spin waves, nonlinear processes, and high frequency manifestations of interactions between the magnetic system and other systems of magnetically ordered substances as elastic waves and charge carriers. Unlike previous monographs on this subject, which are highly theoretical and written for very advanced readers, this book requires only an average college background in mathematics and experimental physics. It will be a valuable addition to the library of engineers and scientists in research and development for communications applications, and scientists interested in nonlinear magnetic phenomena. It also serves as an excellent introduction to the topic for newcomers in the field. Magnetization Oscillations and Waves not only presents results but also shows readers how to obtain them; most formulas are derived with so many details that readers can reproduce them. The book includes many summaries and tables and detailed references to significant work in the area by European researchers.
Download or read book A Dictionary of Electrical Words Terms and Phrases written by Edwin James Houston and published by . This book was released on 1903 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Magnetic Materials written by Nicola Ann Spaldin and published by Cambridge University Press. This book was released on 2003-03-20 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the fundamentals of magnetism and the basic theories and applications of conventional magnetic materials. In addition there is extensive discussion of novel magnetic phenomena and their modern device applications. The book starts with a review of elementary magnetostatics and magnetic materials, followed by a discussion of the atomic origins of magnetism. The properties and applications of ferro-, ferri, para-, dia- and antiferro-magnets are surveyed, and the basic theories that describe them are outlined. The final part of the book focuses on novel magnetic phenomena, and on magnetic materials in modern technological applications. Based on a course given by the author in the Materials Department at UC Santa Barbara, the book is targeted at graduate and advanced undergraduate students as well as researchers new to the field. Highly illustrated, containing numerous homework problems and worked solutions, this book is ideal for a one semester course in magnetic materials.
Download or read book Thermodynamics of Magnetizing Materials and Superconductors written by Vladimir Kozhevnikov and published by CRC Press. This book was released on 2019-06-11 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will help readers understand thermodynamic properties caused by magnetic fields. Providing a concise review of time independent magnetic fields, it goes on to discuss the thermodynamic properties of magnetizing materials of different shapes, and finally, the equilibrium properties of superconductors of different shapes and also of different sizes. Chapters are accompanied by problems illustrating the applications of the principles to optimize and enhance understanding. This book will be of interest to advanced undergraduates, graduate students, and researchers specializing in thermodynamics, solid state physics, magnetism, and superconductivity. Features: The first book to provide comprehensive coverage of thermodynamics in magnetic fields, only previously available, in part, in journal articles Chapters include problems and worked solutions demonstrating real questions in contemporary superconductivity, such as properties of vortex matter
Download or read book Interaction of Superconductivity and Ferromagnetism in YBCO LCMO Heterostructures written by Soltan Soltan and published by Cuvillier Verlag. This book was released on 2005 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Encyclopaedia Britannica written by Thomas Spencer Baynes and published by . This book was released on 1882 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Encyclopaedia Britannica written by Hugh Chisholm and published by . This book was released on 1911 with total page 1176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eleventh edition was developed during the encyclopaedia's transition from a British to an American publication. Some of its articles were written by the best-known scholars of the time and it is considered to be a landmark encyclopaedia for scholarship and literary style.
