Theory of Magnetism

Author: Hung T Diep
Publisher: World Scientific Publishing Company
ISBN: 9814569968
Format: PDF, Docs
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The book is intended for graduate students and researchers who wish to master the main properties of magnetic materials in the bulk state and at the nanometric scale such as for thin films and multilayers. This textbook provides the theories and methods of simulation to study and to understand these properties in an explicit manner. In the first part of the book, the quantum theory of magnetism is presented while the second part of the book is devoted to the application of the theory of magnetism to surface physics. Numerous examples covering typical cases in ferromagnets, antiferromagnets, ferrimagnets, helimagnets, and frustrated spin systems are all illustrated. Fundamental surface effects are shown and discussed. Lastly, the spin transport is described — in which the basic formulation of the Boltzmann's equation is recalled — and the recent methods of Monte Carlo simulation to deal with the spin resistivity are explained. This book contains a large number of detailed solutions for the problems given in each chapter to help readers discover new related phenomena and applications, as well as an appendix on elements of statistical physics included at the end to make the book self-contained.

Introduction to Surface Magnetism

Author: Takahito Kaneyoshi
Publisher: CRC Press
ISBN: 9780849366871
Format: PDF, Docs
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This book has been designed as an introductory text to surface magnetism for physics and material science students. General topics discussed include the physical characteristics of magnetically ordered systems, the structural aspects of surfaces, magnetic surfaces, the Weiss molecular field and other effective field theories, the scaling concept and scaling relations, ferro- and ferrimagnetism, and spin waves. Introduction to Surface Magnetism includes 85 figures and 6 tables to help summarize information presented in the book.

The Quantum Theory of Magnetism

Author: Norberto Majlis
Publisher: World Scientific
ISBN: 9812567925
Format: PDF, ePub, Mobi
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This advanced level textbook is devoted to the description of systems which show ordered magnetic phases. A wide selection of topics is covered, including a detailed treatment of the mean-field approximation as the main paradigm for the phenomenological description of phase transitions. The book discusses the properties of low-dimensional systems and uses Green's functions extensively after a useful mathematical introduction. A thorough presentation of the RKKY and related models of indirect exchange is also featured, and a chapter on surface magnetism, rarely found in other textbooks, adds to the uniqueness of this book.For the second edition, three new chapters have been added, namely on magnetic anisotropy, on coherent magnon states and on local moments. Additionally, the chapter on itinerant magnetism has been enlarged by including a section on paramagnons.

Magnetism of Surfaces Interfaces and Nanoscale Materials

Author: Robert E. Camley
Publisher: Elsevier
ISBN: 0444626395
Format: PDF, ePub
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In the past 30 years, magnetic research has been dominated by the question of how surfaces and interfaces influence the magnetic and transport properties of nanostructures, thin films and multilayers. The research has been particularly important in the magnetic recording industry where the giant magnetoresistance effect led to a new generation of storage devices including hand-held memories such as those found in the ipod. More recently, transfer of spin angular momentum across interfaces has opened a new field for high frequency applications. This book gives a comprehensive view of research at the forefront of these fields. The frontier is expanding through dynamic exchange between theory and experiment. Contributions have been chosen to reflect this, giving the reader a unified overview of the topic. Addresses both theory and experiment that are vital for gaining an essential understanding of topics at the interface between magnetism and materials science Chapters written by experts provide great insights into complex material Discusses fundamental background material and state-of-the-art applications, serving as an indispensable guide for students and professionals at all levels of expertise Stresses interdisciplinary aspects of the field, including physics, chemistry, nanocharacterization, and materials science Combines basic materials with applications, thus widening the scope of the book and its readership

Physics and Engineering Applications of Magnetism

Author: Yoshikazu Ishikawa
Publisher: Springer Science & Business Media
ISBN: 3642841589
Format: PDF, ePub, Mobi
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This book was originally published in Japanese in honour of Professor S. Chikazumi on the occasion of his retirement from the University of Tokyo in March 1982. Physicists who had been supervised by him or had closely col laborated with him wrote articles on recent developments in magnetism and its engineering applications. In the preface of his excellent textbook Physics of Magnetism (Wiley, 1964), Professor Chikazumi says that recent research in magnetism deals with fundamental physical problems and, at the same time, with more secondary magnetic phenomena, as well as with engineering applications of magnetic materials to electromagnetic machines, permanent magnets and electronic computers, and that the purpose of his textbook is to give a general view of these magnetic phenomena, focusing its main interest at the center of such a broad field. Always keeping such a viewpoint in mind, Professor Chikazumi has contributed a great deal to both fundamental physics and applications of magnetism. This is described in Chap. 1 of this book. Many books have been published on both the physics and applications of magnetism. However, no single book has a viewpoint covering both of them. The recent development of high technology needs such a broad viewpoint for scientists and engineers since it is a product of both fundamental science and technology. Research in magnetism is based on the response which materials show to the application of magnetic fields.

THEORY OF MAGNETISM

Author: Kei Yosida
Publisher: Springer Science & Business Media
ISBN: 9783540606512
Format: PDF, ePub, Mobi
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The theory of magnetism is an important subfield of the theory of solids and is the basis for much research into the phenomenon of magnetism. This book, divided into four parts, provides the foundation for further development in this field

Electron Correlation and Magnetism in Narrow Band Systems

Author: T. Moriya
Publisher: Springer Science & Business Media
ISBN: 3642816398
Format: PDF
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Speech by Toyosaburo Taniguchi Welcome my friends to the Third International Symposium, Division on the Theory of Condensed Matter, of the Taniguchi Foundation. The need is now greater than ever for Japan to consider how to strengthen and foster international understanding between nations, peoples and societies, and how to contribute towards the establishment of peace and prosperity in the world. For more than twenty years, I have been supporting a symposium on mathe matics in which distinguished scholars from allover the world have engaged in free discussions. In this symposium, all the participants live together in community style. I have heard from members of some of these study groups that this type of setup has helped to strengthen their ties and relationships with their colleagues on a personal basis. What developed in the mathematics group led me to reorganize and strengthen the Taniguchi Foundation only a few years ago through additional funding. In order to effectively translate the objectives of the Foundation into action with the funds available, it becomes necessary to select those fields which are not necessarily in the limelight of popular interest, which means those fields which, I am afraid, are low in funding. I would rather choose from modest unimpressive academic fields than for the Foundation, projects those that stand out in gaudy, gorgeous popular acclaim.

Polarized Electrons in Surface Physics

Author: R Feder
Publisher: World Scientific
ISBN: 9814518913
Format: PDF, ePub, Docs
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Contents:Theoretical Foundation:Electronic and Magnetic Structure of Solid Surfaces (A J Freeman, C L Fu, S Ohnishi & M Weinert)Ferromagnetism of Transition Metals at Finite Temperatures (H Capellmann)Critical Behaviour at Surfaces of Ferromagnets (K Binder)Principles and Theory of Electron Scattering and Photoemission (R Feder)Experiments and Results:Sources and Detectors for Polarized Electrons (J Kirschner)Elastic Spin-Polarized Low Energy Electron Diffraction from Non-Magnetic Surfaces (F B Dunning & G K Walters)Elastic Spin-Polarized Low-Energy Electron Scattering from Magnetic Surfaces (U Gradmann & S F Alvarad)Inelastic Electron Scattering by Ferromagnets (J Kirschner)Spin Polarized Secondary Electron Emission from Ferromagnets (M Landolt)Spin Polarized Photoemission by Optical Spin Orientation in Semiconductors (F Meier)Adsorbates (U Heinzmann & G Schonhense)Spin- and Angle-Resolved Photoemission from Ferromagnets (E Kisker)Spin Dependent Inverse Photoemission from Ferromagnets (V Dose & M Glöbl)Photoemission and Bremsstrahlung from Fe and Ni: Theoretical Results and Analysis of Experimental Data (R Clauberg & R Feder)Polarized Electrons in Surface Physics: Outlook (M Campagna) Readership: Graduate students and researchers interested in surface physics.

Theory of Itinerant Electron Magnetism

Author: Jürgen Kübler
Publisher: Oxford University Press
ISBN: 0191565423
Format: PDF, Mobi
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This book, in the broadest sense, is an application of quantum mechanics and statistical mechanics to the field of magnetism. Under certain well described circumstances, an immensely large number of electrons moving in the solid state of matter will collectively produce permanent magnetism. Permanent magnets are of fundamental interest, and magnetic materials are also of great practical importance as they provide a large field of technological applications. The physical details describing the many electron problem of magnetism are presented in this book on the basis of the local density functional approximation. The emphasis is on realistic magnets, for which the equations describing the many electron problem can only be solved by using computers. The great, recent and continuing improvements of computers are, to a large extent, responsible for the progress in the field. Along with a detailed introduction to the density functional theory, this book presents representative computational methods and provides the reader with a complete computer programme for the determination of the electronic structure of a magnet on a PC. A large part of the book is devoted to a detailed treatment of the connections between electronic properties and magnetism, and how they differ in the various known magnetic systems. Current trends are exposed and explained for a large class of alloys and compounds. The modern field of artificially layered systems - known as multilayers - and their industrial applications are dealt with in detail. Finally, an attempt is made to relate the rich thermodynamic properties of magnets to the ab initio results originating from the electronic structure.