Thermal Stability Of Metastable Magnetic Skyrmions

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Thermal Stability of Metastable Magnetic Skyrmions

Author : Louise Desplat
Publisher : Springer Nature
ISBN 13 : 3030660265
Total Pages : 166 pages
Book Rating : 4.0/5 (36 download)

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Book Synopsis Thermal Stability of Metastable Magnetic Skyrmions by : Louise Desplat

Download or read book Thermal Stability of Metastable Magnetic Skyrmions written by Louise Desplat and published by Springer Nature. This book was released on 2021-02-04 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Magnetic Skyrmions and Their Applications

Author : Giovanni Finocchio
Publisher : Woodhead Publishing
ISBN 13 : 012820933X
Total Pages : 472 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Magnetic Skyrmions and Their Applications by : Giovanni Finocchio

Download or read book Magnetic Skyrmions and Their Applications written by Giovanni Finocchio and published by Woodhead Publishing. This book was released on 2021-06-03 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Generation, Detection and Manipulation of Skyrmions in Magnetic Nanostructures

Author : Huaiyang Yuan
Publisher : Frontiers Media SA
ISBN 13 : 283250065X
Total Pages : 89 pages
Book Rating : 4.8/5 (325 download)

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Book Synopsis Generation, Detection and Manipulation of Skyrmions in Magnetic Nanostructures by : Huaiyang Yuan

Download or read book Generation, Detection and Manipulation of Skyrmions in Magnetic Nanostructures written by Huaiyang Yuan and published by Frontiers Media SA. This book was released on 2022-09-23 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Solid State Physics

Author :
Publisher : Academic Press
ISBN 13 : 0323915183
Total Pages : 246 pages
Book Rating : 4.3/5 (239 download)

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Book Synopsis Solid State Physics by :

Download or read book Solid State Physics written by and published by Academic Press. This book was released on 2021-11-19 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid State Physics, Volume 72, the latest release in this long-running serial, highlights new advances in the field with this new volume presenting interesting and timely chapters authored by an international board of experts. Chapters in this release include Roadmap: The influence of the internal domain wall structure on spin wave band structure in periodic magnetic stripe domain patterns, The influence of the internal domain wall structure on spin wave band structure in periodic magnetic stripe domain patterns, and more. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in the Solid State Physics series

Topology in Magnetism

Author : Jiadong Zang
Publisher : Springer
ISBN 13 : 3319973347
Total Pages : 426 pages
Book Rating : 4.3/5 (199 download)

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Book Synopsis Topology in Magnetism by : Jiadong Zang

Download or read book Topology in Magnetism written by Jiadong Zang and published by Springer. This book was released on 2018-09-24 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents both experimental and theoretical aspects of topology in magnetism. It first discusses how the topology in real space is relevant for a variety of magnetic spin structures, including domain walls, vortices, skyrmions, and dynamic excitations, and then focuses on the phenomena that are driven by distinct topology in reciprocal momentum space, such as anomalous and spin Hall effects, topological insulators, and Weyl semimetals. Lastly, it examines how topology influences dynamic phenomena and excitations (such as spin waves, magnons, localized dynamic solitons, and Majorana fermions). The book also shows how these developments promise to lead the transformative revolution of information technology.

Atomic- and Nanoscale Magnetism

Author : Roland Wiesendanger
Publisher : Springer
ISBN 13 : 3319995588
Total Pages : 400 pages
Book Rating : 4.3/5 (199 download)

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Book Synopsis Atomic- and Nanoscale Magnetism by : Roland Wiesendanger

Download or read book Atomic- and Nanoscale Magnetism written by Roland Wiesendanger and published by Springer. This book was released on 2018-11-02 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of the fascinating recent developments in atomic- and nanoscale magnetism, including the physics of individual magnetic adatoms and single spins, the synthesis of molecular magnets for spintronic applications, and the magnetic properties of small clusters as well as non-collinear spin textures, such as spin spirals and magnetic skyrmions in ultrathin films and nanostructures. Starting from the level of atomic-scale magnetic interactions, the book addresses the emergence of many-body states in quantum magnetism and complex spin states resulting from the competition of such interactions, both experimentally and theoretically. It also introduces novel microscopic and spectroscopic techniques to reveal the exciting physics of magnetic adatom arrays and nanostructures at ultimate spatial and temporal resolution and demonstrates their applications using various insightful examples. The book is intended for researchers and graduate students interested in recent developments of one of the most fascinating fields of condensed matter physics.

Magneto-transport Properties of Skyrmions and Chiral Spin Structures in MnSi

Author : Tomoyuki Yokouchi
Publisher : Springer
ISBN 13 : 9813293853
Total Pages : 94 pages
Book Rating : 4.8/5 (132 download)

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Book Synopsis Magneto-transport Properties of Skyrmions and Chiral Spin Structures in MnSi by : Tomoyuki Yokouchi

Download or read book Magneto-transport Properties of Skyrmions and Chiral Spin Structures in MnSi written by Tomoyuki Yokouchi and published by Springer. This book was released on 2019-08-14 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides extensive and novel insights into transport phenomena in MnSi, paving the way for applying the topology and chirality of spin textures to the development of spintronics devices. In particular, it describes in detail the key measurements, e.g. magnetoresistance and nonlinear electronic transport, and multiple material-fabrication techniques based on molecular beam epitaxy, ion-beam microfabrication and micromagnetic simulation. The book also reviews key aspects of B20-type MnSi chiral magnets, which host magnetic skyrmions, nanoscale objects formed by helical spatial spin structures. Readers are then introduced to cutting-edge findings on the material. Furthermore, by reviewing the author’s successful experiments, the book provides readers with a valuable update on the latest achievements in the measurement and fabrication of magnetic materials in spintronics.

Skyrmions

Author : J. Ping Liu
Publisher : CRC Press
ISBN 13 : 1315284154
Total Pages : 447 pages
Book Rating : 4.3/5 (152 download)

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Book Synopsis Skyrmions by : J. Ping Liu

Download or read book Skyrmions written by J. Ping Liu and published by CRC Press. This book was released on 2016-12-08 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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.

Chiral Matter - Proceedings Of The Nobel Symposium 167

Author : Egor Babaev
Publisher : World Scientific
ISBN 13 : 9811265070
Total Pages : 277 pages
Book Rating : 4.8/5 (112 download)

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Book Synopsis Chiral Matter - Proceedings Of The Nobel Symposium 167 by : Egor Babaev

Download or read book Chiral Matter - Proceedings Of The Nobel Symposium 167 written by Egor Babaev and published by World Scientific. This book was released on 2023-02-13 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: A geometric figure has chirality, or handedness, if its mirror image cannot be brought to coincide with itself. The concept of chirality was instrumental in establishing the tetrahedral valences of the carbon atom, and has continued to play a key role in chemistry and molecular biology ever since.The fact that living organisms use only one of two mirror isomers of such molecules as amino acids and sugars, that is, the question of the origin of homochirality of the molecular basis of life, remains an unsolved problem of the same dignity as the origin of dark matter and dark energy.The increasing importance of chirality and topology in condensed matter physics and chemistry, and the production of new states of matter in heavy-ion collisions, have brought the concept of chirality into physics and cosmology in a tangible way while at the same time expanded the physics/chemistry interface. The book is the first to address all aspects of chirality in a single volume.

Magnetic Skyrmions

Author : Dipti Ranjan Sahu
Publisher : BoD – Books on Demand
ISBN 13 : 1839692529
Total Pages : 150 pages
Book Rating : 4.8/5 (396 download)

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Book Synopsis Magnetic Skyrmions by : Dipti Ranjan Sahu

Download or read book Magnetic Skyrmions written by Dipti Ranjan Sahu and published by BoD – Books on Demand. This book was released on 2021-07-28 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Discovery of Co-existing Non-collinear Spin Textures in D2d Heusler Compounds

Author : Jagannath Jena
Publisher : Springer Nature
ISBN 13 : 3031039106
Total Pages : 147 pages
Book Rating : 4.0/5 (31 download)

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Book Synopsis Discovery of Co-existing Non-collinear Spin Textures in D2d Heusler Compounds by : Jagannath Jena

Download or read book Discovery of Co-existing Non-collinear Spin Textures in D2d Heusler Compounds written by Jagannath Jena and published by Springer Nature. This book was released on 2022-06-29 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-collinear spin textures have attracted significant attention due to their topological nature, emergent electromagnetic properties, and potential spintronic and magnonic device applications. This book explores the physical properties of distinct spin textures in D2d compounds. The main goals of the work are (a) discovering new spin textures in D2d Heusler compounds and studying their detailed properties to enrich the field of non-collinear magnetism (b) optimizing the nano-track geometry and generating isolated and single chains of nano-objects that will establish new hallmarks for technological applications (c) studying the stability of spin textures with magnetic fields and temperatures and finding a way to observe the striking behavior of spin textures near the specimen edges. The first few chapters provide a brief overview of spin textures such as Bloch and Néel skyrmions. In the experimental methods section, the author shows how to identify the single-crystalline grains of a polycrystalline sample, how to make single-crystalline thin specimens and nano-tracks, and then provides explicit descriptions of different imaging techniques performed on a transmission electron microscope. This part will be valuable for beginners wishing to conduct research in experimental nano-magnetism and transmission electron microscope imaging. The core results of the book are presented in four chapters, describing the discovery of several new and unanticipated spin textures, namely square-shaped antiskyrmions, elliptical Bloch skyrmions, fractional antiskyrmions, fractional Bloch skyrmions and elongated (anti)skyrmions in a single D2d Heusler compound. It is shown that these textures can be understood by a combination of dipole-dipole interactions and a chiral vector exchange that makes it possible to stabilize various spin textures even in the same compound. The D2d compounds are the first non-centrosymmetric systems shown to host several co-existing non-collinear spin textures.

Spintronics Handbook, Second Edition: Spin Transport and Magnetism

Author : Evgeny Y. Tsymbal
Publisher : CRC Press
ISBN 13 : 0429805268
Total Pages : 646 pages
Book Rating : 4.4/5 (298 download)

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Book Synopsis Spintronics Handbook, Second Edition: Spin Transport and Magnetism by : Evgeny Y. Tsymbal

Download or read book Spintronics Handbook, Second Edition: Spin Transport and Magnetism written by Evgeny Y. Tsymbal and published by CRC Press. This book was released on 2019-06-26 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spintronics Handbook, Second Edition offers an update on the single most comprehensive survey of the two intertwined fields of spintronics and magnetism, covering the diverse array of materials and structures, including silicon, organic semiconductors, carbon nanotubes, graphene, and engineered nanostructures. It focuses on seminal pioneering work, together with the latest in cutting-edge advances, notably extended discussion of two-dimensional materials beyond graphene, topological insulators, skyrmions, and molecular spintronics. The main sections cover physical phenomena, spin-dependent tunneling, control of spin and magnetism in semiconductors, and spin-based applications. Features: Presents the most comprehensive reference text for the overlapping fields of spintronics (spin transport) and magnetism. Covers the full spectrum of materials and structures, from silicon and organic semiconductors to carbon nanotubes, graphene, and engineered nanostructures. Extends coverage of two-dimensional materials beyond graphene, including molybdenum disulfide and study of their spin relaxation mechanisms Includes new dedicated chapters on cutting-edge topics such as spin-orbit torques, topological insulators, half metals, complex oxide materials and skyrmions. Discusses important emerging areas of spintronics with superconductors, spin-wave spintronics, benchmarking of spintronics devices, and theory and experimental approaches to molecular spintronics. Evgeny Tsymbal's research is focused on computational materials science aiming at the understanding of fundamental properties of advanced ferromagnetic and ferroelectric nanostructures and materials relevant to nanoelectronics and spintronics. He is a George Holmes University Distinguished Professor at the Department of Physics and Astronomy of the University of Nebraska-Lincoln (UNL), Director of the UNL’s Materials Research Science and Engineering Center (MRSEC), and Director of the multi-institutional Center for NanoFerroic Devices (CNFD). Igor Žutić received his Ph.D. in theoretical physics at the University of Minnesota. His work spans a range of topics from high-temperature superconductors and ferromagnetism that can get stronger as the temperature is increased, to prediction of various spin-based devices. He is a recipient of 2006 National Science Foundation CAREER Award, 2005 National Research Council/American Society for Engineering Education Postdoctoral Research Award, and the National Research Council Fellowship (2003-2005). His research is supported by the National Science Foundation, the Office of Naval Research, the Department of Energy, and the Airforce Office of Scientific Research.

Magnetic Nano- and Microwires

Author : Manuel Vázquez
Publisher : Woodhead Publishing
ISBN 13 : 0081028334
Total Pages : 1012 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Magnetic Nano- and Microwires by : Manuel Vázquez

Download or read book Magnetic Nano- and Microwires written by Manuel Vázquez and published by Woodhead Publishing. This book was released on 2020-04-01 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic Nano-and Microwires: Design, Synthesis, Properties and Applications, Second Edition, reviews the growth and processing of nanowires and nanowire heterostructures using such methods as sol-gel and electrodeposition, focused-electron/ion-beam-induced deposition, epitaxial growth by chemical vapor transport, and more. Other sections cover engineering nanoporous anodic alumina, discuss magnetic and transport properties, domains, domain walls in nano-and microwires. and provide updates on skyrmions, domain walls, magnetism and transport, and the latest techniques to characterize and analyze these effects. Final sections cover applications, both current and emerging, and new chapters on memory, sensor, thermoelectric and nanorobotics applications. This book will be an ideal resource for academics and industry professionals working in the disciplines of materials science, physics, chemistry, electrical and electronic engineering and nanoscience. - Details the multiple key techniques for the growth, processing and characterization of nanowires and microwires - Reviews the principles and difficulties involved in applying magnetic nano- and microwires to a wide range of applications, also including biomedical and sensing applications - Discusses magnetism and transport in nanowires, skyrmions and domain walls in nanowires and the latest innovations in magnetic imaging

Spintronics

Author : Jean-Philippe Ansermet
Publisher : CRC Press
ISBN 13 : 1040097936
Total Pages : 802 pages
Book Rating : 4.0/5 (4 download)

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Book Synopsis Spintronics by : Jean-Philippe Ansermet

Download or read book Spintronics written by Jean-Philippe Ansermet and published by CRC Press. This book was released on 2024-08-13 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt: A sound understanding of magnetism, transport theory, spin relaxation mechanisms, and magnetization dynamics is necessary to engage in spintronics research. In this primer, special effort has been made to give straightforward explanations for these advanced concepts. This book will be a valuable resource for graduate students in spintronics and related fields. Concepts of magnetism such as exchange interaction, spin-orbit coupling, spin canting, and magnetic anisotropy are introduced. Spin-dependent transport is described using both thermodynamics and Boltzmann’s equation, including Berry curvature corrections. Spin relaxation phenomenology is accounted for with master equations for quantum spin systems coupled to a bath. Magnetic resonance principles are applied to describe spin waves in ferromagnets, cavity-mode coupling in antiferromagnets, and coherence phenomena relevant to spin qubits applications. Key Features: • A pedagogical approach to foundational concepts in spintronics with simple models that can be calculated to enhance understanding. • Nineteen chapters, each beginning with a historical perspective and ending with an outlook on current research. • 1200 references, ranging from landmark papers to frontline publications. Jean-Philippe Ansermet is Professor Emeritus at École Polytechnique Fédérale de Lausanne (EPFL), where he pioneered experiments on giant magnetoresistance, current-induced magnetization switching, heat-driven spin torque, and nuclear magnetic resonance. He taught mechanics, thermodynamics, and spin dynamics for more than twenty years. A fellow of the American Physical Society and recipient of the 2022 Credit Suisse Teaching Award, he was an executive board member of the European Physical Society, president of the Swiss Physical Society, and teaching director at EPFL. He has authored or co-authored textbooks on mechanics and thermodynamics and published more than two hundred articles.

Multiferroics

Author : Andres Cano
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110582139
Total Pages : 431 pages
Book Rating : 4.1/5 (15 download)

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Book Synopsis Multiferroics by : Andres Cano

Download or read book Multiferroics written by Andres Cano and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-06-21 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiferroics, materials with a coexistence of magnetic and ferroelectric order, provide an efficient route for the control of magnetism by electric fields. The authors cover multiferroic thin-film heterostructures, device architectures and domain/interface effects. They critically discuss achievements as well as limitations and assess opportunities for future applications.

Spintronics

Author : Tomasz Blachowicz
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110490633
Total Pages : 302 pages
Book Rating : 4.1/5 (14 download)

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Book Synopsis Spintronics by : Tomasz Blachowicz

Download or read book Spintronics written by Tomasz Blachowicz and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-05-06 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Starting from quantum mechanical and condensed matter foundations, this book introduces into the necessary theory behind spin electronics (Spintronics). Equations of spin diffusion, -evolution and -tunelling are provided before an overview is given of simulation of spin transport at the atomic scale. Furthermore, applications are discussed with a focus on elementary spintronics devices such as spin valves, memory cells and hard disk heads.

Frontiers in Physics - 2017 & 2018 Editor's Choice

Author : Thomas Beyer
Publisher : Frontiers Media SA
ISBN 13 : 2889458040
Total Pages : 190 pages
Book Rating : 4.8/5 (894 download)

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Book Synopsis Frontiers in Physics - 2017 & 2018 Editor's Choice by : Thomas Beyer

Download or read book Frontiers in Physics - 2017 & 2018 Editor's Choice written by Thomas Beyer and published by Frontiers Media SA. This book was released on 2019-02-22 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Launched in 2013, Frontiers in Physics consists of 18 specialties covering all areas of research in physics. With over 500 published manuscripts, the journal is now indexed in SCIE with the first impact factor coming in 2019. Frontiers in Physics aims to become the largest and most cited open access multidisciplinary physics journal. This eBook collects what the Specialty Chief Editors of the journal believed were the most interesting manuscripts published over the past two years. It is a nice collection, which will offer the reader the chance to have a quick overview of the specialties of the journal and offer a glimpse into the state of the art of physics. We must confess that it has been quite challenging to select only one article per specialty section given the many important manuscripts published by the journal in 2017 and 2018. We invite our reader to have a look at the journal homepage and browse what we have published so far. It includes articles on topics very different from each other, written by both early career scientists and well-known researchers, ranging from the indisputable advance of the field to the more bold. We hope you enjoy reading our first edition of the Frontiers in Physics Editor's Choice eBook! Professor Alex Hansen (Field Chief Editor) and Dr Claudio Bogazzi (Journal Manager)