Magnetic Skyrmions And Their Applications
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Magnetic Skyrmions And Their Applications
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Author : Giovanni Finocchio
language : en
Publisher: Woodhead Publishing
Release Date : 2021-06-03
Magnetic Skyrmions And Their Applications written by Giovanni Finocchio and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-03 with Technology & Engineering categories.
Magnetic skyrmions are particle-like objects described by localized solutions of non-linear partial differential equations. Up until a few decades ago, it was believed that magnetic skyrmions only existed in condensed matter as short-term excitations that would quickly collapse into linear singularities. The contrary was proven theoretically in 1989 and evidentially in 2009. It is now known that skyrmions can exist as long-living metastable configurations in low-symmetry condensed matter systems with broken mirror symmetry, increasing the potential applications possible. Magnetic Skyrmions and their Applications delves into the fundamental principles and most recent research and developments surrounding these unique magnetic particles. Despite achievements in the synthesis of systems stabilizing chiral magnetic skyrmions and the variety of experimental investigations and numerical calculations, there have not been many summaries of the fundamental physical principles governing magnetic skyrmions or integrating those concepts with methods of detection, characterization and potential applications. Magnetic Skyrmions and their Applications delivers a coherent, state-of-the-art discussion on the current knowledge and potential applications of magnetic skyrmions in magnetic materials and device applications. First the book reviews key concepts such as topology, magnetism and materials for magnetic skyrmions. Then, charactization methods, physical mechanisms, and emerging applications are discussed. - Covers background knowledge and details the basic principles of magnetic skyrmions, including materials, characterization, statics and dynamics - Reviews materials for skyrmion stabilization including bulk materials and interface-dominated multilayer materials - Describes both well-known and unconventional applications of magnetic skyrmions, such as memristors and reservoir computing
Skyrmions In Magnetic Materials
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Author : Shinichiro Seki
language : en
Publisher: Springer
Release Date : 2015-11-19
Skyrmions In Magnetic Materials written by Shinichiro Seki and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-11-19 with Computers categories.
This brief reviews current research on magnetic skyrmions, with emphasis on formation mechanisms, observation techniques, and materials design strategies. The response of skyrmions, both static and dynamical, to various electromagnetic fields is also covered in detail. Recent progress in magnetic imaging techniques has enabled the observation of skyrmions in real space, as well as the analysis of their ordering manner and the details of their internal structure. In metallic systems, conduction electrons moving through the skyrmion spin texture gain a nontrivial quantum Berry phase, which provides topological force to the underlying spin texture and enables the current-induced manipulation of magnetic skyrmions. On the other hand, skyrmions in an insulator can induce electric polarization through relativistic spin-orbit interaction, paving the way for the control of skyrmions by an external electric field without loss of Joule heating. Because of its nanometric scale, particle nature, and electric controllability, skyrmions are considered as potential candidates for new information carriers in the next generation of spintronics devices.
Magnetic Skyrmions
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Author : Dipti Ranjan Sahu
language : en
Publisher: BoD – Books on Demand
Release Date : 2021-07-28
Magnetic Skyrmions written by Dipti Ranjan Sahu and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-07-28 with Science categories.
Magnetic skyrmionics is an advanced and active research field, which involves fundamental physics, the creation of efficient next-generation high-density information devices, the formation and manipulation of nanometer-size skyrmions in devices, and the development of compatible materials at room temperature. The magnetic skyrmions found in magnetic materials exhibit spiral magnetism. This book presents a basic overview of magnetic skyrmions along with current research on magnetic skyrmions, emphasizing formation mechanisms and materials design strategies. This book is suitable for an interdisciplinary audience of undergraduates, graduates, engineers, scientists, and researchers in the development of the next generation of spintronic devices.
Generation Detection And Manipulation Of Skyrmions In Magnetic Nanostructures
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Author : Huaiyang Yuan
language : en
Publisher: Frontiers Media SA
Release Date : 2022-09-23
Generation Detection And Manipulation Of Skyrmions In Magnetic Nanostructures written by Huaiyang Yuan and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-23 with Science categories.
Magnetic Multilayers
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Author : Lawrence H Bennett
language : en
Publisher: World Scientific
Release Date : 1994-12-16
Magnetic Multilayers written by Lawrence H Bennett and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-12-16 with Technology & Engineering categories.
This book focuses on an increasingly important area of materials science and technology, namely, the fabrication and properties of artificial materials where slabs of magnetized materials are sandwiched between slabs of nonmagnetized materials. It includes reviews by experts on the theory and descriptions of the various experimental techniques such as those using nuclear or electron spin probes, as well as optical, X-ray or neutron probes. It also reviews potential applications such as the giant magnetoresistance, and one specialized preparation technique, the electrodeposition. The various chapters are tutorial in nature, making the subject accessible to nonspecialists, as well as useful to researchers in the field.
Skyrmions A Theory Of Nuclei
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Author : Nicholas S Manton
language : en
Publisher: World Scientific
Release Date : 2022-02-24
Skyrmions A Theory Of Nuclei written by Nicholas S Manton and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-02-24 with Science categories.
Skyrmions - A Theory of Nuclei surveys 60 years of research into the brilliant and imaginative idea of Tony Skyrme that atomic nuclei can be modelled as Skyrmions, topologically stable states in an effective quantum field theory of pions. Skyrme theory emerges as a low-energy approximation to the more fundamental theory of quarks and gluons - quantum chromodynamics (QCD). Skyrmions give spatial structure to the protons and neutrons inside nuclei, and capture the interactions of these basic particles, allowing them to partially merge. Skyrme theory also gives a topological explanation for the conservation of baryon number, a fundamental principle of physics.The book summarises the particle and field theory background, then presents Skyrme field theory together with the mathematics needed to understand it. Many beautiful and surprisingly symmetric Skyrmions are described and illustrated in colour. Quantized Skyrmion motion models the momentum, energy and spin of nuclei, and also their isospin, the quantum number distinguishing protons and neutrons. Skyrmion vibrations also need to be quantized, and the book reviews how the complicated energy spectra of several nuclei, including Carbon-12 and Oxygen-16, are accurately modelled by rotational/vibrational states of Skyrmions. A later chapter explores variants of Skyrme theory, incorporating mesons heavier than pions, and extending the basic theory to include particles like kaons that contain strange quarks. The final chapter introduces the Sakai-Sugimoto model, which relates Skyrmions to gauge theory instantons in a higher-dimensional framework inspired by string theory.
Skyrmions
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Author : J. Ping Liu
language : en
Publisher: CRC Press
Release Date : 2016-12-08
Skyrmions written by J. Ping Liu and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-08 with Science categories.
"The book reviews all the aspects of recent developments in research on skyrmions, from the presentation of the observation and characterization techniques to the description of physical properties and expected applications. It will be of great use for all scientists working in this field." – Albert Fert, 2007 Nobel Laureate in Physics (from the Foreword) A skyrmion is a tiny region of reversed magnetization – quasiparticles since they are not present except in a magnetic state, and also give rise to physics that cannot be described by Maxwell’s equations. These particles are fascinating subjects for theoretical and experimental studies. Moreover, as a new type of magnetic domain structure with special topological structures, skyrmions feature outstanding magnetic and transport properties and may well have applications in data storage and other advanced spintronic devices, as readers will see in this book. Chapters address the relationships between physical properties of condensed matter, such as the AB effect, Berry phase effect, quantum Hall effect, and topological insulators. Overall, it provides a timely introduction to the fundamental aspects and possible applications of magnetic skyrmions to an interdisciplinary audience from condensed matter physics, chemistry, and materials science.
Thermal Stability Of Metastable Magnetic Skyrmions
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Author : Louise Desplat
language : en
Publisher: Springer Nature
Release Date : 2021-02-04
Thermal Stability Of Metastable Magnetic Skyrmions written by Louise Desplat and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-04 with Technology & Engineering categories.
The energy cost associated with modern information technologies has been increasing exponentially over time, stimulating the search for alternative information storage and processing devices. Magnetic skyrmions are solitonic nanometer-scale quasiparticles whose unique topological properties can be thought of as that of a Mobius strip. Skyrmions are envisioned as information carriers in novel information processing and storage devices with low power consumption and high information density. As such, they could contribute to solving the energy challenge. In order to be used in applications, isolated skyrmions must be thermally stable at the scale of years. In this work, their stability is studied through two main approaches: the Kramers' method in the form of Langer's theory, and the forward flux sampling method. Good agreement is found between the two methods. We find that small skyrmions possess low internal energy barriers, but are stabilized by a large activation entropy. This is a direct consequence of the existence of stable modes of deformation of the skyrmion. Additionally, frustrated exchange that arises at some transition metal interfaces leads to new collapse paths in the form of the partial nucleation of the corresponding antiparticle, as merons and antimerons.
Nanooptics And Nanoelectronics Nanobiotechnology And Their Applications
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Author : Olena Fesenko
language : en
Publisher: Springer Nature
Release Date : 2024-12-03
Nanooptics And Nanoelectronics Nanobiotechnology And Their Applications written by Olena Fesenko and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-12-03 with Science categories.
This book highlights some of the latest advances in nanotechnology and nanomaterials from leading researchers in Ukraine, Europe, and beyond. It features contributions from participants of the 11th International Conference Nanotechnology and Nanomaterials (NANO-2023) in Bukovel, Ukraine on August 16-19, 2023 organized by the Institute of Physics of the National Academy of Sciences of Ukraine, University of Tartu (Estonia), University of Turin (Italy), and Pierre and Marie Curie University (France). Worldwide experts present scientific achievements in key topics such as nanophysics, nanophotonics, nanooptics, nanoplasmonics, nanoelectronics, and nanobiotechnology. The book explores a significant branch of nanoscience and introduces new opportunities for synergistic research. Specifically, it: • presents new methods for the synthesis and characterization of nanomaterials, nanocomposites and various nanostructures • presents microscopy, spectroscopy and laser imaging techniques for nanomaterials and nanocomposites • presents novel advances in nanophysics, nanooptics, nanophotonics, and nanoplasmonics • covers nanobiotechnology and nanochemistry, and their applications. This Book is essential reading for advanced undergraduate and graduate students, senior scientists, and industry representatives. It includes up-to-date results of investigations in nanotechnology and nanomaterials, along with promising its applications from nanophysics to nanomedicine.
Materials Science For Future Applications
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Author : Abhijeet R. Kadam
language : en
Publisher: CRC Press
Release Date : 2025-06-20
Materials Science For Future Applications written by Abhijeet R. Kadam and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-06-20 with Science categories.
Materials Science for Future Applications: Emerging Development and Future Perspectives offers an overview of the materials used for progressive energy systems, such as solar cells, luminescent energy, sensors and detectors and energy storage devices. Today’s worldwide energy and materials production is going through important changes, which are developing novel prospects. These developments and innovative technologies are changing the way energy is manufactured, transported and spent. The materials emphasis in this book conveys a new perspective and highlights the many challenges that are often overlooked in other literature. An understanding of these challenges can be critical when working with new energy material technologies. Particular devotion is given to the key materials and their conversion productivity, extensive duration of permanency, materials expenses and energy materials sustainability. Materials Science for Future Applications offers a comprehensive introduction for students and researchers, in both academia and industry, who are interested in understanding the properties of emerging materials and their challenges.