Spin waves (and their quanta magnons) can effectively carry and process information in magnetic nanostructures. By analogy to photonics, this research field is labelled magnonics. It comprises the study of excitation, detection, and manipulation of magnons. From the practical point of view, the most attractive feature of magnonic devices is the controllability of their functioning by an external magnetic field. This book has been designed for students and researchers working in magnetism. Here the readers will find review articles written by leading experts working on realization of magnonic devices.
| Author | : Gianluca Gubbiotti |
| Publisher | : CRC Press |
| Release Date | : 2019-07-16 |
| ISBN 10 | : 1000024547 |
| Pages | : 396 pages |
Magnonics, a research field that uses spin waves, collective excitations of ordered magnetic materials, or magnons (their quanta) as a tool for signal processing, communication, and computation, has rapidly grown during the past decade because of the low-energy consumption and potential compatibility with next-generation circuits beyond CMOS electronics. The interest in 3D magnonic nanostructures follows the latest trend in conventional electronics based on expansion from 2D planar to 3D vertically integrated structures. To remain on the same technological level, a similar expansion should be realized in magnonics. Following this trend, this book provides an overview of recent developments in the exploitation of the third dimension in magnonics, with special focus on the propagation of spin waves in layered magnonic crystals, spin textures, curved surfaces, 3D nano-objects, and cavity magnonics.
| Author | : Sergio M. Rezende |
| Publisher | : Springer Nature |
| Release Date | : 2020 |
| ISBN 10 | : 3030413179 |
| Pages | : 372 pages |
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.
Magnonics: Interface Transmission Tutorial Book Series provides up-to-date and concise summaries of the present knowledge of interface transmission science. The series' volumes foster the exchange of ideas among scientists interested in different aspects of interface transmission, with each release designed as a text, a reference, and a source. The series serves as an introduction to advanced graduate students, researchers and scientists with little acquaintance with the subject, and is also useful in keeping specialists informed about general progress in the field. A detailed description of mathematical languages is provided in an appendix, enabling readers to find composite system linear transmission properties. All scientists who contribute to these volume have worked in interface transmission in composite systems over many years, providing a thorough and comprehensive understanding of magnonics. Offers a unique approach to magnonics from an interfacial transmission point-of-view Teaches the modern physics of interface transmission, and in particular, magnonics through composite systems Authored and edited by world-leading experts on Interface Transmission
| Author | : Pfirrmann, Marco |
| Publisher | : KIT Scientific Publishing |
| Release Date | : 2020-10-05 |
| ISBN 10 | : 3731510030 |
| Pages | : 138 pages |
In this book, hybrid systems based on yttrium-iron-garnet (YIG), three dimensional microwave cavity resonators, and superconducting transmon qubits, are investigated by continuous wave and pulsed microwave spectroscopy. Limitations to the magnetic linewidth in the quantum regime are identified and coherent exchange between a magnon and a superconducting qubit are demonstrated. Finally, a first step towards a strongly coupled hybrid system containing all three components is demonstrated.
| Author | : Michael A. Chilcote |
| Publisher | : N.A |
| Release Date | : 2020 |
| ISBN 10 | : |
| Pages | : 329 pages |
The study of coherent magnonic interactions relies implicitly on the ability to excite and exploit long lived spin wave excitations in a magnetic material. That requirement has led to the nearly universal reliance on yittrium iron garnet (YIG), which for half a century has reigned as the unchallenged leader in low-loss magnetic resonance despite extensive efforts to identify alternative materials. Surprisingly, the organic-based ferrimagnet vanadium tetracyanoethylene (V[TCNE]x; x ~ 2) has recently emerged as a compelling alternative to YIG. In contrast to other organic-based materials, V[TCNE]x exhibits robust magnetism, has a single-peaked, narrow magnetic resonance feature (less than 1 G at 10 GHz), and has a Curie temperature of over 600 K with sharp hysteresis switching to full saturation at room temperature. On the other hand, progress in the field of organic electronics has yielded significant advances in the development and application of organic light emitting diodes (OLEDs), organic photovoltaics (OPVs), and organic field effect transistors (OFETs). The success of these device applications suggests that further expansion of the field to include magnetic functionality offers promising opportunities. At the same time, the emergence of optimized thin-film growth of and successful encapsulation strategies for organic-based magnetic materials allows for long term stability of high-quality magnets under ambient conditions. Presented here is the synthesis of a new class of organic-based magnetic nanostructures consisting of nanowires of V[TCNE]x that assemble along the ridges of a grooved substrate. These nanowires exhibit uniaxial magnetic anisotropy with an in-plane easy axis perpendicular to the nanowires, which is in direct contrast to the isotropic in-plane response of typical thin-films. These nanostructures support the excitation of multiple modes, and when these different magnon modes are brought into resonance by varying the orientation of an in-plane magnetic field, we observe anticrossing behavior, indicating strong coherent coupling between the excitations. Furthermore, micromagnetic simulations using real nanowire profiles extracted from cross-sectional scanning electron microscopy faithfully reproduce the experimentally measured spectra without any free parameters, including spin-wave and other higher-order modes Additionally, we use this data to explore the origin of the induced anisotropy in this materials system and note that these results offer insight into a whole class of organic-based magnetic materials of the form M[Acceptor]x (M = transition metal; x ~ 2). We study films of the V[TCNE]x analog vanadium methyl tricyanoethylenecarboxylate (V[MeTCEC]x), which show a temperature-dependent switch in the easy axis from in-plane to out of plane, supporting conclusions drawn from studies of the induced anisotropy in V[TCNE]x nanostructures. These results introduce a new degree of freedom for organic-based magnetism and spintronics, and together with recent demonstration of encapsulation technologies and demonstrated functional microwave devices that exhibit high quality factors across a range of frequencies, suggest promising applications in microwave electronics and quantum magnonics.
| Author | : Sandoko Kosen |
| Publisher | : N.A |
| Release Date | : 2019 |
| ISBN 10 | : |
| Pages | : 329 pages |
| Author | : N.A |
| Publisher | : N.A |
| Release Date | : 2011 |
| ISBN 10 | : |
| Pages | : 30 pages |
| Author | : Jean-Yves Bigot,Wolfgang Hübner,Theo Rasing,Roy Chantrell |
| Publisher | : Springer |
| Release Date | : 2014-08-05 |
| ISBN 10 | : 3319077430 |
| Pages | : 341 pages |
This volume on Ultrafast Magnetism is a collection of articles presented at the international “Ultrafast Magnetization Conference” held at the Congress Center in Strasbourg, France, from October 28th to November 1st, 2013. This first conference, which is intended to be held every two years, received a wonderful attendance and gathered scientists from 27 countries in the field of Femtomagnetism, encompassing many theoretical and experimental research subjects related to the spins dynamics in bulk or nanostructured materials. The participants appreciated this unique opportunity for discussing new ideas and debating on various physical interpretations of the reported phenomena. The format of a single session with many oral contributions as well as extensive time for poster presentations allowed researchers to have a detailed overview of the field. Importantly, one could sense that, in addition to studying fundamental magnetic phenomena, ultrafast magnetism has entered in a phase where applied physics and engineering are playing an important role. Several devices are being proposed with exciting R&D perspectives in the near future, in particular for magnetic recording, time resolved magnetic imaging and spin polarized transport, therefore establishing connections between various aspects of modern magnetism. Simultaneously, the diversity of techniques and experimental configurations has flourished during the past years, employing in particular Xrays, visible, infra-red and terahertz radiations. It was also obvious that an important effort is being made for tracking the dynamics of spins and magnetic domains at the nanometer scale, opening the pathway to exciting future developments. The concerted efforts between theoretical and experimental approaches for explaining the dynamical behaviors of angular momentum and energy levels, on different classes of magnetic materials, are worth pointing out. Finally it was unanimously recognized that the quality of the scientific oral and poster presentations contributed to bring the conference to a very high international standard.
| Author | : Sergej O. Demokritov |
| Publisher | : CRC Press |
| Release Date | : 2017-09-07 |
| ISBN 10 | : 1351617214 |
| Pages | : 436 pages |
Since the publication of the first edition of Spin-Wave Confinement, the magnetic community’s interest in dynamic excitations in magnetic systems of reduced dimensions has been increasing. Although the concept of spin waves and their quanta (magnons) as propagating excitation of magnetic media was introduced more than 80 years ago, this field has been repeatedly bringing us fascinating new physical phenomena. The successful development of magnonics as an emerging subfield of spintronics, which considers confined spin waves as a basis for smaller, faster, more robust, and more power-efficient electronic devices, inevitably demands reduction in the sizes and dimensions of the magnetic systems being studied. The unique features of magnons, including the possibility of carrying spin information over relatively long distances, the possibility of achieving submicrometer wavelength at microwave frequencies, and controllability by electronic signal via magnetic fields, make magnonic devices distinctively suited for implementation of novel integrated electronic schemes characterized by high speed, low power consumption, and extended functionalities. Edited by S. O. Demokritov, a prominent magnonics researcher who has successfully collected the results of cutting-edge research by almost all main players in the field, this book is for everyone involved in nanotechnology, spintronics, magnonics, and nanomagnetism.
| Author | : Jean-Claude Serge Levy |
| Publisher | : CRC Press |
| Release Date | : 2018-09-03 |
| ISBN 10 | : 1315361353 |
| Pages | : 458 pages |
Magnetic nanoparticles appear naturally in rock magnetism together with a large distribution of sizes and shapes. They have numerous applications from nano-size magnetic memories to metamaterials for electromagnetic waves as well as biological applications such as nanosurgery with minimal traumatism. Their long-ranged size- and shape-dependent dipolar interactions provide numerous useful properties. This book describes the preparation as well as the magnetic properties of nanoparticles and also considers 2D dots, nearly spherical samples, elongated samples, and various assemblies of nanoparticles. The authors report the static magnetic structures and dynamic properties of these nanoparticles and the topological defects in 2D and 3D nanoparticles with new examples of S-shaped vortex or antivortex and of bent vortex or antivortex in 3D nanoparticles. The spectrum of magnetic excitations is shown to exhibit the occurrence of gaps, a key for magnonic metamaterial devices. Magnetic excited states are also considered with their coupling to nanoparticle elastic properties.
| Author | : Claude Fermon,Marcel Van de Voorde |
| Publisher | : John Wiley & Sons |
| Release Date | : 2017-03-17 |
| ISBN 10 | : 3527699066 |
| Pages | : 346 pages |
This first book to focus on the applications of nanomagnetism presents those already realized while also suggesting bold ideas for further breakthroughs. The first part is devoted to the concept of spin electronics and its use for data storage and magnetic sensing, while the second part concentrates on magnetic nanoparticles and their use in industrial environment, biological and medical applications. The third, more prospective part goes on to describe emerging applications related to spin current creation and manipulation, dynamics, spin waves and binary logic based on nano-scale magnetism. With its unique choice of topics and authors, this will appeal to academic as well as corporate researchers in a wide range of disciplines from physics via materials science to engineering, chemistry and life science.
| Author | : N.A |
| Publisher | : N.A |
| Release Date | : 2013-11 |
| ISBN 10 | : |
| Pages | : 329 pages |
| Author | : Nikolai S. Perov,Anna Semisalova |
| Publisher | : Trans Tech Publications Ltd |
| Release Date | : 2015-07-02 |
| ISBN 10 | : 3038269484 |
| Pages | : 812 pages |
Collection of selected, peer reviewed papers from the 6th Moscow International Symposium on Magnetism (MISM), June 29-July 3, 2014, Moscow, Russian Federation. The 178 papers are grouped as follows: Chapter 1: Theory Research and Numerical Simulation; Chapter 2: Magnetic Semiconductors and Oxides; Chapter 3: Magnetic Alloys and Magnetocaloric Effect; Chapter 4: Magnetic Microwires; Chapter 5: Magnetic Soft Matter; Chapter 6: Multiferroics; Chapter 7: Spintronics and Magnetotransport; Chapter 8: High Frequency Properties; Chapter 9: Nanostructures and Low Dimensional Magnetism; Chapter 10: Magnetic Thin Films; Chapter 11: Magnetism and Superconductivity; Chapter 12: Magnetism in Biology and Medicine
| Author | : Jayasimha Atulasimha,Supriyo Bandyopadhyay |
| Publisher | : John Wiley & Sons |
| Release Date | : 2016-01-27 |
| ISBN 10 | : 1118869257 |
| Pages | : 352 pages |
Nanomagnetic and spintronic computing devices are strong contenders for future replacements of CMOS. This is an important and rapidly evolving area with the semiconductor industry investing significantly in the study of nanomagnetic phenomena and in developing strategies to pinpoint and regulate nanomagnetic reliably with a high degree of energy efficiency. This timely book explores the recent and on-going research into nanomagnetic-based technology. Key features: Detailed background material and comprehensive descriptions of the current state-of-the-art research on each topic. Focuses on direct applications to devices that have potential to replace CMOS devices for computing applications such as memory, logic and higher order information processing. Discusses spin-based devices where the spin degree of freedom of charge carriers are exploited for device operation and ultimately information processing. Describes magnet switching methodologies to minimize energy dissipation. Comprehensive bibliographies included for each chapter enabling readers to conduct further research in this field. Written by internationally recognized experts, this book provides an overview of a rapidly burgeoning field for electronic device engineers, field-based applied physicists, material scientists and nanotechnologists. Furthermore, its clear and concise form equips readers with the basic understanding required to comprehend the present stage of development and to be able to contribute to future development. Nanomagnetic and Spintronic Devices for Energy-Efficient Memory and Computing is also an indispensable resource for students and researchers interested in computer hardware, device physics and circuits design.
| Author | : Olle Eriksson,Anders Bergman,Johan Hellsvik,Lars Bergqvist |
| Publisher | : Oxford University Press |
| Release Date | : 2017-02-23 |
| ISBN 10 | : 0198788665 |
| Pages | : 256 pages |
The purpose of this book is to provide a theoretical foundation and an understanding of atomistic spin-dynamics (ASD), and to give examples of where the atomistic Landau-Lifshitz-Gilbert equation can and should be used. As argued in the text, a description of magnetism in an atomistic way is very natural and allows for an interpretation of experimental results in a clear and deep way. This description also allows for calculations, from first principles, of all parameters needed to perform the spin-dynamics simulations, without using experimental results as input to the simulations. As shown in the book, we are now at a very exciting situation, where it is possible to perform accurate and efficient atomistic simulations on a length- and time-scale which is balancing on the edge of what is experimentally possible. In this way, ASD simulations can both validate and be validated by state-of-the art experiments, and ASD simulations also have the possibility to act as a predictive tool that is able to explain the magnetization dynamics in experimentally inaccessible situations. The purpose of this book has been to communicate technically relevant concepts. An even larger motivation is to communicate an inspiration to magnetism and magnetization dynamics, and the emerging technological fields that one may foresee, e.g. in magnonics, solitonics and skyrmionics.
Phononics: Interface Transmission Tutorial Book Series provides an investigation of modern systems that includes a discrete matrix description. Classical continuous systems relying on the use of differential equations are recalled, showing that they generally have a specific limit on their corresponding modern matrix formulation. A detailed description of the mathematical languages that enables readers to find the composite system linear transmission properties is provided in the appendix. The physical model is described with exacting detail, and the bibliography is built to cite—in chronological order—all the scientists that have contributed over many years. Each volume is written with the aim of providing an up-to-date and concise summary of the present knowledge of interface transmission science, thus fostering the exchange of ideas among scientists interested in different aspects of interface transmission. The book serves as an introduction to advanced graduate students, researchers, and scientists with little study on the subject, and is also useful to help keep specialists informed on general progress in the field. Offers a unique approach on phononics from the interfacial transmission point-of-view Teaches the modern physics of interface transmission, in particular, phononics through composite systems Authored and edited by world-leading experts on interface transmission
| Author | : Vladimir L. Safonov |
| Publisher | : John Wiley & Sons |
| Release Date | : 2012-11-08 |
| ISBN 10 | : 3527670556 |
| Pages | : 204 pages |
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.
| Author | : Anjan Barman,Jaivardhan Sinha |
| Publisher | : Springer |
| Release Date | : 2017-12-27 |
| ISBN 10 | : 3319662961 |
| Pages | : 156 pages |
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.
| Author | : Sergej O. Demokritov |
| Publisher | : CRC Press |
| Release Date | : 2019-07-17 |
| ISBN 10 | : 0429533616 |
| Pages | : 240 pages |
This book presents recent scientific achievements in the investigation of magnetization dynamics in confined magnetic systems. Introduced by Bloch as plane waves of magnetization in unconfined ferromagnets, spin waves currently play an important role for description of very small systems.Spin wave confinement effect was experimentally discovered in