Spin Wave Confinement

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Spin Wave Confinement

Sergej O. Demokritov
Spin Wave Confinement Book PDF

Author : Sergej O. Demokritov
Publisher : CRC Press
Page : 183 pages
File Size : 54,8 Mb
Release : 2019-05-08
Category : Science
ISBN : 9780429533617

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Spin Wave Confinement by Sergej O. Demokritov Pdf

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 the 1990s in permalloy microstripes. The diversity of systems where this effect is observed has been steadily growing since then, most of which will be addressed in this book. The book includes six chapters which originate from different groups of experimentalists and theoreticians dominating the field since the discovery of the effect. Different chapters of the book reflect different facets of spin wave confinement, providing a comprehensive description of the effect and its place in modern magnetism. It will be of value for scientists and engineers working on magnetic storage elements and magnetic logic, and is also suitable as an advanced textbook for graduate students.

Spin Wave Confinement

Sergej O. Demokritov
Spin Wave Confinement Book PDF

Author : Sergej O. Demokritov
Publisher : CRC Press
Page : 436 pages
File Size : 45,5 Mb
Release : 2017-09-07
Category : Science
ISBN : 9781351617215

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Spin Wave Confinement by Sergej O. Demokritov Pdf

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.

Spin Wave Confinement

Sergej O. Demokritov
Spin Wave Confinement Book PDF

Author : Sergej O. Demokritov
Publisher : Unknown
Page : 436 pages
File Size : 45,6 Mb
Release : 2017-08-07
Category : Science
ISBN : 9814774359

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Spin Wave Confinement by Sergej O. Demokritov Pdf

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.

Spin Dynamics in Confined Magnetic Structures I

Burkard Hillebrands,Kamel Ounadjela
Spin Dynamics in Confined Magnetic Structures I Book PDF

Author : Burkard Hillebrands,Kamel Ounadjela
Publisher : Springer Science & Business Media
Page : 340 pages
File Size : 43,8 Mb
Release : 2003-07-01
Category : Science
ISBN : 9783540409076

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Spin Dynamics in Confined Magnetic Structures I by Burkard Hillebrands,Kamel Ounadjela Pdf

Introductory chapters help newcomers to understand the basic concepts, and the more advanced chapters give the current state of the art for most spin dynamic issues in the milliseconds to femtoseconds range. Emphasis is placed on both the discussion of the experimental techniques and on the theoretical work. The comprehensive presentation of these developments makes this volume very timely and valuable for every researcher working in the field of magnetism.

Optomagnonic Structures: Novel Architectures For Simultaneous Control Of Light And Spin Waves

Evangelos Almpanis
Optomagnonic Structures Novel Architectures For Simultaneous Control Of Light And Spin Waves Book PDF

Author : Evangelos Almpanis
Publisher : World Scientific
Page : 370 pages
File Size : 46,9 Mb
Release : 2021-01-18
Category : Science
ISBN : 9789811220067

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Optomagnonic Structures: Novel Architectures For Simultaneous Control Of Light And Spin Waves by Evangelos Almpanis Pdf

Understanding, controlling and, more importantly, enhancing the interaction between light (photons) and spin waves (magnons) can be, among others, a step towards the realization of magnon-mediated microwave-to-optical transducers for quantum computing applications or hybrid solid-state spintronic-photonic interconnections. In this respect, the development of novel composite multifunctional micro/nanostructures — so-called optomagnonic — which simultaneously control optical and spin waves and enhance their interaction, is particularly attractive.This book constitutes a collective work, comprising seven chapters from leading researchers in the field of optomagnonics and related areas. Apart from exciting recent developments, it provides the necessary fundamental knowledge in an explanatory manner and, therefore, it is accessible to non-experts. It is suitable for PhD students, post-docs, and researchers who are willing to get engaged in optomagnonics, while selected parts could also serve as lecture material for advanced courses. With increasing demand for miniaturized optomagnonic devices, this book will be an important resource to researchers working on optomagnonics, magneto-optics, spintronics, as well as on hybrid micro/nano devices for information processing.

Magnetic Excitations and Geometric Confinement

Gary Matthew Wysin
Magnetic Excitations and Geometric Confinement Book PDF

Author : Gary Matthew Wysin
Publisher : Iop Expanding Physics
Page : 0 pages
File Size : 47,7 Mb
Release : 2015
Category : Science
ISBN : 0750310758

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Magnetic Excitations and Geometric Confinement by Gary Matthew Wysin Pdf

In this book, author Gary Wysin provides an overview of model systems and their behaviour and effects, and is intended for advanced students and researchers in physics, chemistry and engineering interested in confined magnetics. It is also suitable as an auxiliary text in a class on magnetism or solid state physics. Previous physics knowledge is expected, along with some basic knowledge of classical electromagnetism and electromagnetic waves for the latter chapters.

Spin Waves

Daniel D. Stancil,Anil Prabhakar
Spin Waves Book PDF

Author : Daniel D. Stancil,Anil Prabhakar
Publisher : Springer Nature
Page : 252 pages
File Size : 49,6 Mb
Release : 2021-08-02
Category : Science
ISBN : 9783030685829

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Spin Waves by Daniel D. Stancil,Anil Prabhakar Pdf

This book presents a collection of problems in spin wave excitations with their detailed solutions. Each chapter briefly introduces the important concepts, encouraging the reader to further explore the physics of spin wave excitations and the engineering of spin wave devices by working through the accompanying problem sets. The initial chapters cover the fundamental aspects of magnetization, with its origins in quantum mechanics, followed by chapters on spin wave excitations, such as the magnetostatic approximation, Walker's equation, the spin wave manifold in the three different excitation geometries of forward volume, backward volume and surface waves, and the dispersion of spin waves. The latter chapters focus on the practical aspects of spin waves and spin wave optical devices and use the problem sets to introduce concepts such as variational analysis and coupled mode theory. Finally, for the more advanced reader, the book covers nonlinear interactions and topics such as spin wave quantization, spin torque excitations, and the inverse Doppler effect. The topics range in difficulty from elementary to advanced. All problems are solved in detail and the reader is encouraged to develop an understanding of spin wave excitations and spin wave devices while also strengthening their mathematical, analytical, and numerical programming skills.

Confined Magnon Modes and Anisotropic Exchange Interaction in Ultrathin Co Films

Ying-Jiun Chen
Confined Magnon Modes and Anisotropic Exchange Interaction in Ultrathin Co Films Book PDF

Author : Ying-Jiun Chen
Publisher : Logos Verlag Berlin GmbH
Page : 128 pages
File Size : 42,5 Mb
Release : 2017-04-18
Category : Science
ISBN : 9783832544706

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Confined Magnon Modes and Anisotropic Exchange Interaction in Ultrathin Co Films by Ying-Jiun Chen Pdf

A fundamental need in wireless communication and modern computer processors is to fabricate faster, smaller, and lower power-consumption circuits. A promising approach is the utilization of spin waves, or rather, magnons in ferromagnetic films. Quantum confinement in ultra-thin films permits the coexistence of several exchange-dominated magnon modes with terahertz-range frequencies and sub-nanometer length scales. By means of spin-polarized electron energy loss spectroscopy (SPEELS), these exchange-dominated terahertz magnons are directly probed in ultra-thin cobalt films on Ir(001), Cu(001) and Pt(111) single crystal surfaces. The dispersion relation of the quantized magnon modes depends particularly on the interatomic exchange interaction in individual layers. By tuning the exchange interaction, modes with opposite group velocities, and thus an opposite propagation direction of the wave packets, can be generated. Ab initio theoretical calculations as well as an analytical Heisenberg model reveal a spatial localization of the modes at the surface, interior, and interface of the film that opens an experimental access to the layer-dependent magnetic properties. In itinerant ferromagnets like cobalt the magnetic properties depend sensitively on many-body correlation effects in the electronic structure. Here, it is shown for the first time that spin-dependent correlations lead to a pronounced renormalization of the energy of the highest magnon mode by up to 260 meV, explaining the significant overestimation of theoretically predicted magnon energies and interatomic exchange interaction found in literature.

Recent Advances in Topological Ferroics and their Dynamics

Robert L. Stamps,Helmut Schultheib
Recent Advances in Topological Ferroics and their Dynamics Book PDF

Author : Robert L. Stamps,Helmut Schultheib
Publisher : Academic Press
Page : 302 pages
File Size : 54,9 Mb
Release : 2019-10-18
Category : Technology & Engineering
ISBN : 9780081029213

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Recent Advances in Topological Ferroics and their Dynamics by Robert L. Stamps,Helmut Schultheib Pdf

Recent Advances in Topological Ferroics and Their Dynamics, Volume 70 in the Solid State Physics series, provides the latest information on the branch of physics that is primarily devoted to the study of matter in its solid phase, especially at the atomic level. This prestigious serial presents timely and state-of-the-art reviews pertaining to all aspects of solid state physics. Contains contributions from leading authorities in the study of solid state physics, especially at the atomic level Informs and updates on all the latest developments in the field Presents timely, state-of-the-art reviews pertaining to all aspects of solid state physics

Nanomagnetic and Spintronic Devices for Energy-Efficient Memory and Computing

Jayasimha Atulasimha,Supriyo Bandyopadhyay
Nanomagnetic and Spintronic Devices for Energy Efficient Memory and Computing Book PDF

Author : Jayasimha Atulasimha,Supriyo Bandyopadhyay
Publisher : John Wiley & Sons
Page : 352 pages
File Size : 43,8 Mb
Release : 2016-01-27
Category : Technology & Engineering
ISBN : 9781118869253

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Nanomagnetic and Spintronic Devices for Energy-Efficient Memory and Computing by Jayasimha Atulasimha,Supriyo Bandyopadhyay Pdf

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.

Three-Dimensional Magnonics

Gianluca Gubbiotti
Three Dimensional Magnonics Book PDF

Author : Gianluca Gubbiotti
Publisher : CRC Press
Page : 417 pages
File Size : 40,5 Mb
Release : 2019-07-10
Category : Science
ISBN : 9781000024388

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Three-Dimensional Magnonics by Gianluca Gubbiotti Pdf

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.

Magnetization Oscillations and Waves

A.G. Gurevich,G.A. Melkov
Magnetization Oscillations and Waves Book PDF

Author : A.G. Gurevich,G.A. Melkov
Publisher : CRC Press
Page : 460 pages
File Size : 44,6 Mb
Release : 2020-12-17
Category : Science
ISBN : 9780429605758

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Magnetization Oscillations and Waves by A.G. Gurevich,G.A. Melkov Pdf

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.

Magnonics

Sergej O. Demokritov,Andrei N. Slavin
Magnonics Book PDF

Author : Sergej O. Demokritov,Andrei N. Slavin
Publisher : Springer Science & Business Media
Page : 262 pages
File Size : 41,6 Mb
Release : 2012-08-15
Category : Technology & Engineering
ISBN : 9783642302473

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Magnonics by Sergej O. Demokritov,Andrei N. Slavin Pdf

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.

Handbook of Spintronics

Yongbing Xu,David D. Awschalom,Junsaku Nitta
Handbook of Spintronics Book PDF

Author : Yongbing Xu,David D. Awschalom,Junsaku Nitta
Publisher : Springer
Page : 0 pages
File Size : 42,5 Mb
Release : 2015-10-14
Category : Science
ISBN : 9400768915

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Handbook of Spintronics by Yongbing Xu,David D. Awschalom,Junsaku Nitta Pdf

Over two volumes and 1500 pages, the Handbook of Spintronics will cover all aspects of spintronics science and technology, including fundamental physics, materials properties and processing, established and emerging device technology and applications. Comprising 60 chapters from a large international team of leading researchers across academia and industry, the Handbook provides readers with an up-to-date and comprehensive review of this dynamic field of research. The opening chapters focus on the fundamental physical principles of spintronics in metals and semiconductors, including an introduction to spin quantum computing. Materials systems are then considered, with sections on metallic thin films and multilayers, magnetic tunnelling structures, hybrids, magnetic semiconductors and molecular spintronic materials. A separate section reviews the various characterisation methods appropriate to spintronics materials, including STM, spin-polarised photoemission, x-ray diffraction techniques and spin-polarised SEM. The third part of the Handbook contains chapters on the state of the art in device technology and applications, including spin valves, GMR and MTJ devices, MRAM technology, spin transistors and spin logic devices, spin torque devices, spin pumping and spin dynamics and other topics such as spin caloritronics. Each chapter considers the challenges faced by researchers in that area and contains some indications of the direction that future work in the field is likely to take. This reference work will be an essential and long-standing resource for the spintronics community.

Handbook of Magnetism and Magnetic Materials

Michael Coey,Stuart S.P. Parkin
Handbook of Magnetism and Magnetic Materials Book PDF

Author : Michael Coey,Stuart S.P. Parkin
Publisher : Springer
Page : 1679 pages
File Size : 43,5 Mb
Release : 2021-11-19
Category : Science
ISBN : 3030632083

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Handbook of Magnetism and Magnetic Materials by Michael Coey,Stuart S.P. Parkin Pdf

This handbook presents a comprehensive survey of magnetism and magnetic materials. The dramatic advances in information technology and electromagnetic engineering make it necessary to systematically review the approved key knowledge and summarize the state of the art in this vast field within one seminal reference work. The book thus delivers up-to-date and well-structured information on a wealth of topics encompassing all fundamental aspects of the underlying physics and materials science, as well as advanced experimental methodology and applications. It features coverage of the host of fascinating and complex phenomena that arise from the use of magnetic fields in e.g. chemistry and biology. Edited by two internationally renowned scholars and featuring authored chapters from leading experts in the field, Springer’s Handbook of Magnetism and Magnetic Materials is an invaluable source of essential reference information for a broad audience of students, researchers, and magnetism professionals.