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Magnetic Systems With Competing Interactions
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Book Synopsis Magnetic Systems with Competing Interactions by : H. T. Diep
Download or read book Magnetic Systems with Competing Interactions written by H. T. Diep and published by World Scientific. This book was released on 1994 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended for postgraduate students as well as researchers in various areas of physics such as statistical physics, magnetism and materials sciences. The content of the book covers mainly frustrated spin systems with possible applications in domains where physical systems can be mapped into the spin language. Pedagogical effort has been made to make each chapter to be self-contained, comprehensible for researchers who are not really involved in the field. Basic methods are given in detail.
Book Synopsis Magnetic Systems With Competing Interactions (frustrated Spin Systems) by : H.T. Diep
Download or read book Magnetic Systems With Competing Interactions (frustrated Spin Systems) written by H.T. Diep and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Competing Interactions and Pattern Formation in Nanoworld by : Elena Vedmedenko
Download or read book Competing Interactions and Pattern Formation in Nanoworld written by Elena Vedmedenko and published by Wiley-VCH. This book was released on 2007-04-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systems displaying competing interactions of some kind are widespread - much more, in fact, as commonly anticipated (magnetic and Ising-type interactions or the dynamics of DNA molecules being only two popular examples). Written for researchers in the field with different professional backgrounds, this volume classifies phenomena not by system but rather by the type of competing interactions involved. This allows for a straightforward presentation of the underlying principles and the universal laws governing the behaviour of different systems. Starting with a historical overview, the author proceeds by describing self-competitions of various types of interactions (such as diploar or multipolar interactions), competitions between a short-range and a long-range interaction (as in Ising systems or DNA models) or between a long-range interaction and an anisotropy (as in ultrathin magnetic films or magnetic nanoparticles) and finally competitions between interactions of the same range (as in spin glasses). Each chapter contains a few problems with solutions which provide suitable material for lecturers of mathematics and physics as well as biology courses. A vast body of references to the original literature make the volume self-contained and ideally suited to master this interdisciplinary field.
Book Synopsis Thermodynamic and Magnetic Studies on Correlated Electron Systems with Competing Interactions by : Ahmed Eltamimy Shetiwy
Download or read book Thermodynamic and Magnetic Studies on Correlated Electron Systems with Competing Interactions written by Ahmed Eltamimy Shetiwy and published by . This book was released on 2023* with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Magnetism in Condensed Matter by : Stephen Blundell
Download or read book Magnetism in Condensed Matter written by Stephen Blundell and published by OUP Oxford. This book was released on 2001-10-05 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: An understanding of the quantum mechanical nature of magnetism has led to the development of new magnetic materials which are used as permanent magnets, sensors, and information storage. Behind these practical applications lie a range of fundamental ideas, including symmetry breaking, order parameters, excitations, frustration, and reduced dimensionality. This superb new textbook presents a logical account of these ideas, staring from basic concepts in electromagnetsim and quantum mechanics. It outlines the origin of magnetic moments in atoms and how these moments can be affected by their local environment inside a crystal. The different types of interactions which can be present between magnetic moments are described. The final chapters of the book are devoted to the magnetic properties of metals, and to the complex behaviour which can occur when competing magnetic interactions are present and/or the system has a reduced dimensionality. Throughout the text, the theorectical principles are applied to real systems. There is substantial discussion of experimental techniques and current reserach topics. The book is copiously illustrated and contains detailed appendices which cover the fundamental principles.
Book Synopsis Competing Interactions and Pattern Formation in Nanoworld by : Elena Vedmedenko
Download or read book Competing Interactions and Pattern Formation in Nanoworld written by Elena Vedmedenko and published by John Wiley & Sons. This book was released on 2007-02-27 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systems displaying competing interactions of some kind are widespread - much more, in fact, as commonly anticipated (magnetic and Ising-type interactions or the dynamics of DNA molecules being only two popular examples). Written for researchers in the field with different professional backgrounds, this volume classifies phenomena not by system but rather by the type of competing interactions involved. This allows for a straightforward presentation of the underlying principles and the universal laws governing the behaviour of different systems. Starting with a historical overview, the author proceeds by describing self-competitions of various types of interactions (such as diploar or multipolar interactions), competitions between a short-range and a long-range interaction (as in Ising systems or DNA models) or between a long-range interaction and an anisotropy (as in ultrathin magnetic films or magnetic nanoparticles) and finally competitions between interactions of the same range (as in spin glasses). Each chapter contains a few problems with solutions which provide suitable material for lecturers of mathematics and physics as well as biology courses. A vast body of references to the original literature make the volume self-contained and ideally suited to master this interdisciplinary field.
Book Synopsis Competing Interactions and Microstructures: Statics and Dynamics by : Richard LeSar
Download or read book Competing Interactions and Microstructures: Statics and Dynamics written by Richard LeSar and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many macroscopic properties of materials are determined primarily by inhomogeneous structures and textures. These intermediate-scale structures often arise from competing interactions operating on different length scales within the material. Our understanding of such phenomena has increased substantially with the identification and theoretical description of solid-state materials with incommensurate and long-period modulated phases, such as ferroelectrics, charge-density-wave compounds, epitaxial layers and polytypes. Experimental diagnosis of inhomogeneous ground states and metastable phases has advanced so far that these are now well-accepted phenomena. These proceedings bring together the work of physicists and materials scientists to review developments in this area and to examine possible future directions, such as how the microscopic understanding emerging in bench-top solid-state systems can be applied in materials science.
Book Synopsis Magnetoelectric Response in Low-Dimensional Frustrated Spin Systems by : Shinichiro Seki
Download or read book Magnetoelectric Response in Low-Dimensional Frustrated Spin Systems written by Shinichiro Seki and published by Springer Science & Business Media. This book was released on 2012-08-27 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electric control of magnetic properties, or inversely, magnetic control of dielectric properties in solids, is called a magnetoelectric effect and has long been investigated from the point of view of both fundamental physics and potential application. Magnetic and dielectric properties usually show minimal coupling, but it recently has been discovered that magnetically induced ferroelectricity in some spiral magnets enables remarkably large and versatile magnetoelectric responses. To stabilize such helimagnetism, magnetic frustration (competition between different magnetic interactions) is considered the key. In the present work, two of the most typical frustrated spin systems—triangular lattice antiferromagnets and edge-shared chain magnets—have systematically been investigated. Despite the crystallographic simplicity of target systems, rich magnetoelectric responses are ubiquitously observed. The current results published here offer a useful guideline in the search for new materials with unique magnetoelectric functions, and also provide an important basis for a deeper understanding of magnetoelectric phenomena in more complex systems.
Book Synopsis Introduction to Frustrated Magnetism by : Claudine Lacroix
Download or read book Introduction to Frustrated Magnetism written by Claudine Lacroix and published by Springer Science & Business Media. This book was released on 2011-01-12 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of highly frustrated magnetism has developed considerably and expanded over the last 15 years. Issuing from canonical geometric frustration of interactions, it now extends over other aspects with many degrees of freedom such as magneto-elastic couplings, orbital degrees of freedom, dilution effects, and electron doping. Its is thus shown here that the concept of frustration impacts on many other fields in physics than magnetism. This book represents a state-of-the-art review aimed at a broad audience with tutorial chapters and more topical ones, encompassing solid-state chemistry, experimental and theoretical physics.
Book Synopsis Magnetic Property and Phase Diagram of a Frustrated System with Competing Exchange Interactions, Fex̳Mn1-̳x̳TiO3 by : Hiroko Aruga Katori
Download or read book Magnetic Property and Phase Diagram of a Frustrated System with Competing Exchange Interactions, Fex̳Mn1-̳x̳TiO3 written by Hiroko Aruga Katori and published by . This book was released on 1993 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Frustrated Spin Systems by : H. T. Diep
Download or read book Frustrated Spin Systems written by H. T. Diep and published by World Scientific. This book was released on 2013 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers all principal aspects of currently investigated frustrated systems, from exactly solved frustrated models to real experimental frustrated systems, going through renormalization group treatment, Monte Carlo investigation of frustrated classical Ising and vector spin models, low-dimensional systems, spin ice and quantum spin glass. The reader can OCo within a single book OCo obtain a global view of the current research development in the field of frustrated systems.This new edition is updated with recent theoretical, numerical and experimental developments in the field of frustrated spin systems. The first edition of the book appeared in 2005. In this edition, more recent works until 2012 are reviewed. It contains nine chapters written by researchers who have actively contributed to the field. Many results are from recent works of the authors.The book is intended for postgraduate students as well as researchers in statistical physics, magnetism, materials science and various domains where real systems can be described with the spin language. Explicit demonstrations of formulas and full arguments leading to important results are given where it is possible to do so."
Book Synopsis Novel Dynamical Phenomena In Magnetic Systems by : Soham Biswas
Download or read book Novel Dynamical Phenomena In Magnetic Systems written by Soham Biswas and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: We often refer to the magnetic dipoles as spins. The simplest model describing interactions between spins, is the Ising Model, proposed by E. Ising in 1925. Dynamics of Ising models is a much studied phenomenon and has emerged as a rich field of present-day research. An important dynamical feature commonly studied is the quenching phenomenon below the critical temperature. We have studied the zero temperature quenching dynamics of different Ising spin systems. First we have studied the zero temperature quenching dynamics of two dimensional Ising spin system with competing interactions. Then we have studied the effect of the nature of randomness on zero temperature quenching dynamics of one dimensional Ising model. Many dynamical models related to social phenomena like opinion formation in a society can be described in terms of spin models. A model for opinion dynamics has been proposed in which the binary opinions of the individuals are determined according to the size of their neighbouring domains. This model can be equivalently defined in terms of Ising spin variables and the various quantities studied have one to one correspondence with magnetic systems
Book Synopsis The Chemical and Physical Dynamics of Magnetic Interactions by : Judith Kathryn Clark
Download or read book The Chemical and Physical Dynamics of Magnetic Interactions written by Judith Kathryn Clark and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The central focus of this thesis is a study of materials with competing magnetic interactions and understanding how these interactions affect the overall magnetic behavior of solids. Understanding the fundamental factors that can be used to tune the magnetic exchange interactions provides the legwork to a "materials by design" approach that may be used to target desired magnetic properties for applications related to electronics and spintronics. Specifically, this thesis will focus on the fundamental understanding of how magnetic materials behave when one or more of the following factors is considered: chemical substitution, pressure, applied magnetic field, and temperature.Chapter 1 covers the fundamentals of magnetism and examples of magnetic behaviors that demonstrate the principles that are important to this thesis. Chapter 2 covers the experimental and theoretical methods used in this work. In Chapter 3, the behavior of solid solutions La1-xCexCo2P2, with a particular focus on the representative with x = 0.3, is analyzed. The careful analysis of La0.4Ce0.6Co2P2 is particularly important to this series, as at this composition the magnetic phase boundary between ferromagnetic (FM) and antiferromagnetic (AFM) behavior occurs. The loss of magnetic ordering in this compound due to a temperature driven lattice collapse and the magnetic behavior under pressure are discussed. Additionally, a specific focus on the magnetic behavior of cerium is incorporated for a deeper understanding of the role intermediate valence of Ce plays in the magnetic properties of this series. In Chapter 4, the AFM compound MnBi2Se4 is investigated by neutron scattering and magnetic measurements. The crystal structure reveals AFM chains of Mn atoms. A relative half-translation shift of the neighbor chains results in spin frustration caused by interchain magnetic exchange. Ultimately, these spin-frustrating interactions lead to helimagnetic ordering along the chain propagation direction. To further understand the nature of magnetic exchange in MnBi2Se4, Chapters 5 and 6 focus on the simple binary monocalcogenides, MnS and MnSe. Inelastic neutron scattering (INS) is used to measure the specific magnetic exchange constants in these materials. In MnS, the INS measurements combined with theoretical investigation lead to the revelation that both superexchange and direct exchange play a significant role in the overall AFM ordering. The behavior of MnSe is inherently more complex due to the structural phase transition from cubic (NaCl) to hexagonal (NiAs) phase upon cooling. The transition is incomplete due to its very slow kinetics, which have allowed, for the first time in this system, for experimental observation of the intermediate third phase involved in this transformation. The intermediate phase was investigated by temperature-dependent X-ray diffraction and pair distribution function (PDF) measurements, and supported by INS studies. In continuation of the theme of competing magnetic interactions, Chapter 7 focuses on the magnetic behavior of systems with geometric triangular arrangements of magnetic moments of 4f ions (Ln). The lack of magnetic ordering is observed for a majority of the LnZn3P3 and YbZn2Pn2 (Pn = P, As, Sb) systems down to 1.8 K. The question arises, could the lack of magnetic ordering be caused by the frustration induced by the crystal lattice? Further studies are needed to confirm whether the lack of magnetic ordering, indeed, is caused by spin frustration. X-ray absorption near-edge structure (XANES) spectroscopy is utilized to address the oxidation state of Yb in YbZn2Pn2. Finally, Chapter 8 is dedicated to another potentially interesting system for which the magnetic behavior has not been thoroughly investigated. Er5S7 is unusual as a non-valence-precise structure. The crystal growth and magnetic behavior of Er5S7 are reported, revealing AFM ordering at low temperature. The challenges associated with determining the exact crystal and magnetic structures of this materials are discussed. Throughout this thesis, the relationship between the underlying crystal structure and competing magnetic interactions will be identified and discussed for each unique system. The broad scope of systems considered in this thesis has allowed identification of potentially interesting future research directions, which are outlined in the concluding Chapter 9.
Book Synopsis Polaritons in Periodic and Quasiperiodic Structures by : Eudenilson L. Albuquerque
Download or read book Polaritons in Periodic and Quasiperiodic Structures written by Eudenilson L. Albuquerque and published by Elsevier. This book was released on 2004-12-09 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years there have been exciting developments in techniques for producing multilayered structures of different materials, often with thicknesses as small as only a few atomic layers. These artificial structures, known as superlattices, can either be grown with the layers stacked in an alternating fashion (the periodic case) or according to some other well-defined mathematical rule (the quasiperiodic case). This book describes research on the excitations (or wave-like behavior) of these materials, with emphasis on how the material properties are coupled to photons (the quanta of the light or the electromagnetic radiation) to produce “mixed waves called polaritons. · Clear and comprehensive account of polaritons in multilayered structures · Covers both periodic and quasiperiodic superlattices · Careful attention to theoretical developments and tools · Invaluable guide for researchers in this field · Shows developments from the basics to advanced topics
Book Synopsis Computer Simulation Studies in Condensed-Matter Physics XIX by : David P. Landau
Download or read book Computer Simulation Studies in Condensed-Matter Physics XIX written by David P. Landau and published by Springer Science & Business Media. This book was released on 2008-11-30 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: This status report features the most recent developments in the field, spanning a wide range of topical areas in the computer simulation of condensed matter/materials physics. Both established and new topics are included, ranging from the statistical mechanics of classical magnetic spin models to electronic structure calculations, quantum simulations, and simulations of soft condensed matter.
Book Synopsis Quantum Theory of Magnetism by : Robert M. White
Download or read book Quantum Theory of Magnetism written by Robert M. White and published by Springer Science & Business Media. This book was released on 2013-04-18 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although it is one of the oldest physical phenomena studied, magnetism con tinues to be an active and challenging subject. This is due to the fact that mag netic phenomena represent a complex application of quantum mechanics, statistical physics, and electromagnetism. As new magnetic materials are syn thesized and new experimental conditions realized, the very fundamentals of these subjects are expanded. Thus, the Kondo effect, like superconductivity, stimulated the development of many-body techniques; spin glasses with their competing interactions are leading to advances in statistical physics; and angle and spin-resolved photoemission is probing details of transition-metal electronic states never before possible. I have not tried to incorporate all the new developments in this subject since the first edition ten years ago. My purpose is still the same - to use linear response theory to establish a common conceptual basis for understanding a variety of magnetic phenomena. Many recent developments fit into this frame work and have been included.
Download or read book Advanced Functional Materials written by and published by Newnes. This book was released on 2012-12-31 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with functional materials that are in the frontiers of current materials science and technology research, development and manufacture. The first of its kind, it deals with three classes of materials, (1) magnetic semiconductors, (2) multiferroics, and (3) graphene. Because of the wide popularity of these materials there is a strong need for a book about these materials for graduate students, new researchers in science and technology, as well as experienced scientists and technologists, technology based companies and government institutes for science and technology. The book will provide this broad audience with both theoretical and experimental understanding to help in technological advances in the development of devices and related new technologies based on these very interesting and novel materials. Covers both the theoretical and experimental aspects of advanced functional materials, which are important for use in a number of rapidly developing novel technological devices Includes excellent coverage of three of the leading advanced functional materials Edited by a leading expert at the forefront of advanced functional materials research
