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Ferromagnetic Relaxation Theory
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Book Synopsis Ferromagnetism / Ferromagnetismus by : Henricus P.J. Wijn
Download or read book Ferromagnetism / Ferromagnetismus written by Henricus P.J. Wijn and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1' (/>2 die Winkel zwischen den Magnetisierungsrichtungen der Kugeln und der Verbindungslinie der Kugelmittelpunkte bedeuten. 1m Gleichgewicht ist (/>1 = (/>2=0 oder 71:, auBer wahrend der Ummagnetisierung. Wie wir in Ziff. 18 (s. auch Ziff. 66) sehen werden, wird der Zustand (/>1=(/>2=0 bei der Koerzitiv kraft He=-VMs/r3 (fUr sich beruhrende Kugeln -(71:/6) Ms) instabil. Die Magnetisierung dreht sich dann in beiden Kugeln gleichzeitig und irreversibel in die entgegengesetzte Gleichgewichtslage ((/>1 = (/>2 = 71:), wobei (/>1 = - (/>2 ist (Fanning-ProzeB von JACOBS und BEAN!, s. Fig. 13e). II. Magnetisierungsprozesse. 14. Problemstellung. Ein ferro- oder ferrimagnetischer Kristall ist in einem starken Magnetfeld H in dessen Richtung (positive Richtung) homogen magneti siert. Bei kontinuierlicher Feldumkehr kehrt sich auch die Magnetisierung M (im allgemeinen teilweise diskontinuierlich) in die entgegengesetzte Richtung urn, wobei der Vorzeichenwechsel von M normalerweise nicht im Feld H =0, sondern erst in einem Gegenfeld He
Book Synopsis Spin Dynamics and Damping in Ferromagnetic Thin Films and Nanostructures by : Anjan Barman
Download or read book Spin Dynamics and Damping in Ferromagnetic Thin Films and Nanostructures written by Anjan Barman and published by Springer. This book was released on 2017-12-27 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of the latest developments in the field of spin dynamics and magnetic damping. It discusses the various ways to tune damping, specifically, dynamic and static control in a ferromagnetic layer/heavy metal layer. In addition, it addresses all optical detection techniques for the investigation of modulation of damping, for example, the time-resolved magneto-optical Kerr effect technique.
Book Synopsis Spin Arrangements and Crystal Structure, Domains, and Micromagnetics by : George T. Rado
Download or read book Spin Arrangements and Crystal Structure, Domains, and Micromagnetics written by George T. Rado and published by Academic Press. This book was released on 2013-10-22 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spin Arrangements and Crystal Structure, Domains, and Micromagnetics deals with cooperative phenomena characterized by ordered arrangements of magnetic moments subject to strong mutual interactions. The emphasis is on the ferromagnetism, ferrimagnetism, and antiferromagnetism of magnetically ordered materials such as insulators and metals. Both theoretical and experimental points of view are presented. Comprised of 12 chapters, this volume begins with an introduction to magnetism and crystal structure in nonmetals, followed by an evaluation of exchange interactions from experimental data. Subsequent chapters focus on the theory of neutron scattering by magnetic crystals; spin configuration of ionic structures; spin arrangements in metals; and permanent magnet materials. Fine particles, thin films, and exchange anisotropy are also considered, with particular reference to the effects of finite dimensions and interfaces on the basic properties of ferromagnets. The book also examines micromagnetics; domains and domain walls; the structure and switching of permalloy films; magnetization reversal in nonmetallic ferromagnets; and preparation and crystal synthesis of magnetic oxides. This book will be a useful resource for professionals and students with physics or chemistry backgrounds.
Book Synopsis New Developments in Ferromagnetic Materials by : Jacob Louis Snoek
Download or read book New Developments in Ferromagnetic Materials written by Jacob Louis Snoek and published by . This book was released on 1966 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fundamentals of Magnonics by : Sergio M. Rezende
Download or read book Fundamentals of Magnonics written by Sergio M. Rezende and published by Springer Nature. This book was released on 2020-07-31 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Magnonics is a textbook for beginning graduate students in the areas of magnetism and spintronics. The level of presentation assumes only basic knowledge of the origin of magnetism and electromagnetism, and quantum mechanics. The book utilizes elementary mathematical derivations, aimed mainly at explaining the physical concepts involved in the phenomena studied and enabling a deeper understanding of the experiments presented. Key topics include the basic phenomena of ferromagnetic resonance in bulk materials and thin films, semi-classical theory of spin waves, quantum theory of spin waves and magnons, magnons in antiferromagnets, parametric excitation of magnons, nonlinear and chaotic phenomena, Bose-Einstein condensation of magnons, and magnon spintronics. Featuring end-of-chapter problem sets accompanied by extensive contemporary and historical references, this book provides the essential tools for any graduate or advanced undergraduate-level course of studies on the emerging field of magnonics.
Book Synopsis Study of Ferrimagnetic Crystals by Parallel Pumping by : James C. Sethares
Download or read book Study of Ferrimagnetic Crystals by Parallel Pumping written by James C. Sethares and published by . This book was released on 1965 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of single-crystal ferrimagnetic crystals at microwave frequencies was conducted. The parallel pumping technique was used to experimentally measure spin-wave line width, magnetoelastic coupling constants, energy exchange constants, and phonon linewidths. The experiments were carried out at 300K, 194K, 77K, and 4.2K at X- and K-band frequencies. Four samples of pure, single-crystal yttrium iron garnet (one disk, and three spheres) were extensively investigated. Conditions for optimum detection sensitivity of spin-wave instability measurement are given and discussed. The theory of parallel pumping is explained and worked out in detail. Expressions are obtained for spin-wave and phonon linewidths, magnetoelastic constants and exchange constants in terms of experimentally measured quantities. A literature search was made for publications dealing with parallel-pumping phenomena. These articles (over 75) are abstracted for their contents relative to this investigation. (Author).
Book Synopsis Spinwave Relaxation in Low Anisotropy Antiferromagnets by : Marden H. Seavey (Jr.)
Download or read book Spinwave Relaxation in Low Anisotropy Antiferromagnets written by Marden H. Seavey (Jr.) and published by . This book was released on 1970 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ferromagnetism written by H. P. J. Wijn and published by . This book was released on 1966 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Magnetization Oscillations and Waves by : A.G. Gurevich
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.
Book Synopsis Advances in Electronics and Electron Physics by :
Download or read book Advances in Electronics and Electron Physics written by and published by Academic Press. This book was released on 1954-01-01 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Electronics and Electron Physics
Book Synopsis Nonlinear Magnetization Dynamics in Nanosystems by : Isaak D. Mayergoyz
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.
Book Synopsis Handbook of Nanomagnetism by : Rosa A. Lukaszew
Download or read book Handbook of Nanomagnetism written by Rosa A. Lukaszew and published by CRC Press. This book was released on 2015-10-06 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique handbook compiles and details cutting-edge research in nanomagnetism and its applications in spintronics, magnetoplasmonics, and nonlinear magneto-optics. Fundamental aspects of magnetism relevant to nanodevices and new spin-transfer torque random-access memory (STT-RAM), current-induced domain wall motion memory, and spin torque oscill
Book Synopsis Nonequilibrium Magnons by : Vladimir L. Safonov
Download or read book Nonequilibrium Magnons written by Vladimir L. Safonov and published by John Wiley & Sons. This book was released on 2012-11-08 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This much-needed book addresses the concepts, models, experiments and applications of magnons and spin wave in magnetic devices. It fills the gap in the current literature by providing the theoretical and technological framework needed to develop innovative magnetic devices, such as recording devices and sensors. Starting with a historical review of developments in the magnon concept, and including original experimental results, the author presents methods of magnon excitation, and several basic models to describe magnon gas. He includes experiments on Bose-Einstein condensation of non-equilibrium magnons, as well as various applications of a magnon approach.
Book Synopsis Spintronics Handbook, Second Edition: Spin Transport and Magnetism by : Evgeny Y. Tsymbal
Download or read book Spintronics Handbook, Second Edition: Spin Transport and Magnetism written by Evgeny Y. Tsymbal and published by CRC Press. This book was released on 2019-05-09 with total page 635 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spintronics Handbook, Second Edition offers an update on the single most comprehensive survey of the two intertwined fields of spintronics and magnetism, covering the diverse array of materials and structures, including silicon, organic semiconductors, carbon nanotubes, graphene, and engineered nanostructures. It focuses on seminal pioneering work, together with the latest in cutting-edge advances, notably extended discussion of two-dimensional materials beyond graphene, topological insulators, skyrmions, and molecular spintronics. The main sections cover physical phenomena, spin-dependent tunneling, control of spin and magnetism in semiconductors, and spin-based applications.
Book Synopsis Advances in Chemical Physics, Volume 83 by : Ilya Prigogine
Download or read book Advances in Chemical Physics, Volume 83 written by Ilya Prigogine and published by John Wiley & Sons. This book was released on 2009-09-09 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Advances in Chemical Physics series provides the chemical physics and physical chemistry fields with a forum for critical, authoritative evaluations of advances in every area of the discipline. Filled with cutting-edge research reported in a cohesive manner not found elsewhere in the literature, each volume of the Advances in Chemical Physics series serves as the perfect supplement to any advanced graduate class devoted to the study of chemical physics.
Book Synopsis Magnetism and Magnetic Materials by : R L White
Download or read book Magnetism and Magnetic Materials written by R L White and published by Elsevier. This book was released on 2013-10-22 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetism and Magnetic Materials: 1965 Digest: A Survey of the Technical Literature of the Preceding Year focuses on the processes, methodologies, reactions, technologies, and advancements in magnetism and magnetic materials. The selection first offers information on general theoretical problems, including spin-wave dispersion, exchange integral, magnetic ordering, soluble models, magnetic phase transitions, and conduction electron spin polarization. The text then ponders on neutron diffraction, spin configurations, and magnetic transitions and properties of transition metals and their alloys. Topics include neutron scattering theory and equipment; spin configurations and magnetic transitions; magnetic behavior; rare earth alloys and compounds; and other alloys and compounds. The publication takes a look at the properties of magnetically dilute alloys and rare earth metals and their alloys. Discussions focus on rare earth intermetallic compounds, transition metals in noble metals, and other dilute alloys. The text then examines the technical properties of soft magnetic materials, magnetically hard materials, thin films, and nuclear magnetism. The selection is a valuable source of data for readers interested in magnetism and magnetic materials.
Book Synopsis Solid State Physics by : Robert L. Stamps
Download or read book Solid State Physics written by Robert L. Stamps and published by Academic Press. This book was released on 2020-11-12 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid State Physics, Volume 71 provides the latest volume in this long-running series. This latest volume highlights new advances in the field, with this new volume presenting interesting chapters written by an international board of authors. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in the Solid State Physics series - Offers an updated release that includes the latest information in solid state physics
