Spin Dynamics in Magnetic Vortex Structures

Spin Dynamics in Magnetic Vortex Structures PDF Author: Jooho Park
Publisher:
ISBN:
Category :
Languages : en
Pages : 292

Book Description


A Simulation Study of Magnetic Vortex Structures and Spin Dynamic Modes in Permalloy Materials

A Simulation Study of Magnetic Vortex Structures and Spin Dynamic Modes in Permalloy Materials PDF Author: Wang Hao
Publisher:
ISBN:
Category :
Languages : en
Pages : 268

Book Description


The Vortex State

The Vortex State PDF Author: N. Bontemps
Publisher: Springer Science & Business Media
ISBN: 9401109745
Category : Science
Languages : en
Pages : 330

Book Description
One of the most spectacular consequences of the description of the superfluid condensate in superfluid He or in superconductors as a single macroscopic quantum state is the quantization of circulation, resulting in quantized vortex lines. This book draws no distinction between superfluid He3 and He4 and superconductors. The reader will find the essential introductory chapters and the most recent theoretical and experimental progress in our understanding of the vortex state in both superconductors and superfluids, from lectures given by leading experts in the field, both experimentalists and theoreticians, who gathered in Cargèse for a NATO ASI. The peculiar features related to short coherence lengths, 2D geometry, high temperatures, disorder, and pinning are thoroughly discussed.

Ultrafast Vortex Core Dynamics Investigated by Finite-element Micromagnetic Simulations

Ultrafast Vortex Core Dynamics Investigated by Finite-element Micromagnetic Simulations PDF Author: Sebastian Gliga
Publisher: Forschungszentrum Jülich
ISBN: 3893366601
Category :
Languages : en
Pages : 165

Book Description


Spin Wave Confinement

Spin Wave Confinement PDF Author: Sergej O. Demokritov
Publisher: CRC Press
ISBN: 0429533616
Category : Science
Languages : en
Pages : 171

Book Description
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.

Atomistic Spin Dynamics

Atomistic Spin Dynamics PDF Author: Olle Eriksson
Publisher: Oxford University Press
ISBN: 0198788665
Category : Science
Languages : en
Pages : 265

Book Description
Several large experimental facilities that focus on detection and probing magnetization dynamics have been realized in Europe, USA and Japan. This book covers theoretical and practical aspects of the vibrant and emerging research field of magnetization dynamics.

Spin Dynamics and Damping in Ferromagnetic Thin Films and Nanostructures

Spin Dynamics and Damping in Ferromagnetic Thin Films and Nanostructures PDF Author: Anjan Barman
Publisher: Springer
ISBN: 3319662961
Category : Technology & Engineering
Languages : en
Pages : 166

Book Description
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.

Magnetic Multilayers

Magnetic Multilayers PDF Author: Lawrence H Bennett
Publisher: World Scientific
ISBN: 9814571067
Category : Technology & Engineering
Languages : en
Pages : 397

Book Description
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.

Vortex Dynamics and Optical Vortices

Vortex Dynamics and Optical Vortices PDF Author: Hector Perez-De-Tejada
Publisher: BoD – Books on Demand
ISBN: 9535129295
Category : Science
Languages : en
Pages : 346

Book Description
The contents of the book cover a wide variety of topics related to the analysis of the dynamics of vortices and describe the results of experiments, computational modeling and their interpretation. The book contains 13 chapters reaching areas of physics in vortex dynamics and optical vortices including vortices in superfluid atomic gases, vortex laser beams, vortex-antivortex in ferromagnetic hybrids, and optical vortices illumination in chiral nanostructures. Also, discussions are presented on particle motion in vortex flows, on the simulation of vortex-dominated flows, on vortices in saturable media, on achromatic vortices, and on ultraviolet vortices. Fractal light vortices, coherent vortex beams, together with vortices in electric dipole radiation, and spin wave dynamics in magnetic vortices are examined as well.

Magnetic Structures of 2D and 3D Nanoparticles

Magnetic Structures of 2D and 3D Nanoparticles PDF Author: Jean-Claude Serge Levy
Publisher: CRC Press
ISBN: 1315361353
Category : Science
Languages : en
Pages : 458

Book Description
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.