Ultrafast Vortex Core Dynamics Investigated By Finite Element Micromagnetic Simulations

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Atomistic Spin Dynamics

Author : Olle Eriksson,Anders Bergman,Lars Bergqvist,Johan Hellsvik
Publisher : Oxford University Press
Page : 265 pages
File Size : 55,5 Mb
Release : 2017
Category : Science
ISBN : 9780198788669

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Atomistic Spin Dynamics by Olle Eriksson,Anders Bergman,Lars Bergqvist,Johan Hellsvik Pdf

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.

Spin Wave Confinement

Author : Sergej O. Demokritov
Publisher : CRC Press
Page : 183 pages
File Size : 42,5 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.

Magnetic Nano- and Microwires

Author : Manuel Vázquez
Publisher : Woodhead Publishing
Page : 847 pages
File Size : 41,7 Mb
Release : 2015-05-27
Category : Technology & Engineering
ISBN : 9780081001813

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Magnetic Nano- and Microwires by Manuel Vázquez Pdf

Magnetic nanowires and microwires are key tools in the development ofenhanced devices for information technology (memory and data processing) andsensing. Offering the combined characteristics of high density, high speed, andnon-volatility, they facilitate reliable control of the motion of magnetic domainwalls; a key requirement for the development of novel classes of logic and storagedevices. Part One introduces the design and synthesis of magnetic nanowires andmicrowires, reviewing the growth and processing of nanowires and nanowireheterostructures using such methods as sol-gel and electrodepositioncombinations, focused-electron/ion-beam-induced deposition, chemicalvapour transport, quenching and drawing and magnetic interactions. Magneticand transport properties, alongside domain walls, in nano- and microwiresare then explored in Part Two, before Part Three goes on to explore a widerange of applications for magnetic nano- and microwire devices, includingmemory, microwave and electrochemical applications, in addition to thermalspin polarization and configuration, magnetocalorific effects and Bloch pointdynamics. Detailed coverage of multiple key techniques for the growth and processing of nanowires and microwires Reviews the principles and difficulties involved in applying magnetic nano- and microwires to a wide range of applications Combines the expertise of specialists from around the globe to give a broad overview of current and future trends

Handbook of Spintronics

Author : Yongbing Xu,David D. Awschalom,Junsaku Nitta
Publisher : Springer
Page : 0 pages
File Size : 43,5 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.

Spin Dynamics and Damping in Ferromagnetic Thin Films and Nanostructures

Author : Anjan Barman,Jaivardhan Sinha
Publisher : Springer
Page : 156 pages
File Size : 51,9 Mb
Release : 2017-12-27
Category : Technology & Engineering
ISBN : 9783319662961

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Spin Dynamics and Damping in Ferromagnetic Thin Films and Nanostructures by Anjan Barman,Jaivardhan Sinha Pdf

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.

Introduction to the Theory of Ferromagnetism

Author : Amikam Aharoni
Publisher : Clarendon Press
Page : 344 pages
File Size : 55,5 Mb
Release : 2000
Category : Science
ISBN : 0198508085

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Introduction to the Theory of Ferromagnetism by Amikam Aharoni Pdf

The present book is the second edition of Amikam Aharoni's Introduction to the Theory of Ferromagnetism, based on a popular lecture course. Like its predecessor, it serves a two-fold purpose: First, it is a textbook for first-year graduate and advanced undergraduate students in both physics and engineering. Second, it explains the basic theoretical principles on which the work is based for practising engineers and experimental physicists who work in the field of magnetism, thus also serving to a certain extent as a reference book. For both professionals and students the emphasis is on introducing the foundations of the different subfields, highlighting the direction and tendency of the most recent research. For this new edition, the author has thoroughly updated the material especially of chapters 9 ('The Nucleation Problem') and 11 ('Numerical Micromagnetics'), which now contain the state of the art required by students and professionals who work on advanced topics of ferromagnetism. From reviews on the 1/e: '... a much needed, thorough introduction and guide to the literature. It is full of wisdom and commentary. Even more, it is Amikam Aharoni at his best - telling a story... He is fun to read... The extensive references provide an advanced review of micromagnetics and supply sources for suitable exercises... there is much for the student to do with the guidance provided by Introduction to the Theory of Ferromagnetism.' A. Arrott, Physics Today, September 1997

Hot Embossing

Author : Matthias Worgull
Publisher : William Andrew
Page : 368 pages
File Size : 40,7 Mb
Release : 2009-09-28
Category : Technology & Engineering
ISBN : 0815519745

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Hot Embossing by Matthias Worgull Pdf

This book is an overview of replication technology for micro- and nanostructures, focusing on the techniques and technology of hot embossing, a scaleable and multi-purpose technology for the manufacture of devices such as BioMEMS and microfluidic devices which are expected to revolutionize a wide range of medical and industrial processes over the coming decade. The hot embossing process for replicating microstructures was developed by the Forschungszentrum Karlsruhe (Karlsruhe Institute of Technology) where the author is head of the Nanoreplication Group. Worgull fills a gap in existing information by fully detailing the technology and techniques of hot embossing. He also covers nanoimprinting, a process related to hot embossing, with examples of actual research topics and new applications in nanoreplication. *A practical and theoretical guide to selecting the materials, machinery and processes involved in microreplication using hot embossing techniques. *Compares different replication processes such as: micro injection molding, micro thermoforming, micro hot embossing, and nanoimprinting *Details commercially available hot embossing machinery and components like tools and mold inserts

Magnetic Microscopy of Nanostructures

Author : Herbert Hopster,Hans Peter Oepen
Publisher : Springer Science & Business Media
Page : 318 pages
File Size : 48,5 Mb
Release : 2006-03-30
Category : Technology & Engineering
ISBN : 9783540266419

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Magnetic Microscopy of Nanostructures by Herbert Hopster,Hans Peter Oepen Pdf

A comprehensive collection of overview articles on novel microscopy methods for imaging magnetic structures on the nanoscale. Written by leading scientists in the field, the book covers synchrotron based methods, spin-polarized electron methods, and scanning probe techniques. It constitutes a valuable source of reference for graduate students and newcomers to the field.

Ultrafast Magnetization Dynamics

Author : Simon Woodford
Publisher : Forschungszentrum Jülich
Page : 137 pages
File Size : 54,5 Mb
Release : 2008
Category : Magnetic fields
ISBN : 9783893365364

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Ultrafast Magnetization Dynamics by Simon Woodford Pdf

Handbook of Magnetic Materials

Author : Ekkes H. Brück
Publisher : Elsevier
Page : 216 pages
File Size : 49,7 Mb
Release : 2020-11-29
Category : Technology & Engineering
ISBN : 9780128210246

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Handbook of Magnetic Materials by Ekkes H. Brück Pdf

Handbook of Magnetic Materials, Volume 29, highlights new advances in the field, with this new volume presenting interesting chapters written by an international board of authors on topics such as spin-orbit torque. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in the Handbook of Magnetic Materials series

Computational Electronics

Author : Dragica Vasileska,Stephen Goodnick
Publisher : Springer Nature
Page : 208 pages
File Size : 42,7 Mb
Release : 2022-06-01
Category : Technology & Engineering
ISBN : 9783031016905

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Computational Electronics by Dragica Vasileska,Stephen Goodnick Pdf

Computational Electronics is devoted to state of the art numerical techniques and physical models used in the simulation of semiconductor devices from a semi-classical perspective. Computational electronics, as a part of the general Technology Computer Aided Design (TCAD) field, has become increasingly important as the cost of semiconductor manufacturing has grown exponentially, with a concurrent need to reduce the time from design to manufacture. The motivation for this volume is the need within the modeling and simulation community for a comprehensive text which spans basic drift-diffusion modeling, through energy balance and hydrodynamic models, and finally particle based simulation. One unique feature of this book is a specific focus on numerical examples, particularly the use of commercially available software in the TCAD community. The concept for this book originated from a first year graduate course on computational electronics, taught now for several years, in the Electrical Engineering Department at Arizona State University. Numerous exercises and projects were derived from this course and have been included. The prerequisite knowledge is a fundamental understanding of basic semiconductor physics, the physical models for various device technologies such as pndiodes, bipolar junction transistors, and field effect transistors.

Magnetism in Condensed Matter

Author : Stephen Blundell
Publisher : OUP Oxford
Page : 272 pages
File Size : 47,8 Mb
Release : 2001-10-05
Category : Science
ISBN : 9780191586644

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Magnetism in Condensed Matter by Stephen Blundell Pdf

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.

High-Field Science

Author : Toshiki Tajima,Kunioki Mima,Hector Baldis
Publisher : Springer Science & Business Media
Page : 246 pages
File Size : 53,5 Mb
Release : 2001-03-31
Category : Science
ISBN : 0306463768

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High-Field Science by Toshiki Tajima,Kunioki Mima,Hector Baldis Pdf

High Field Science is a proceedings volume from a meeting at Lawrence Livermore Laboratory, and contains papers from the top experts in the fields of ultraintense laser technology, laser fusion energy, high energy laser electron acceleration, bright X-ray sources by lasers, laboratory laser astrophysics, and applications to relativity, high density and high energy physics.