2,360 research outputs found
Nonlinear Magnetization Dynamics in Nanosystems
No full textContents: 1 - Introduction 2 - Basic Equations for Magnetization Dynamics 3 - Spatially Uniform Magnetization Dynamics 4 - Precessional Magnetization Dynamics 5 - Dissipative Magnetization Dynamics 6 - Magnetization Switching 7 - Magnetization Dynamics under Time-Harmonic Excitation 8- Spin-waves and Parametric Instabilities 9 - Spin-Transfer-Driven Magnetization Dynamics 10 - Stochastic Magnetization Dynamics 11 - Numerical Techniques for Magnetization Dynamics Analysi
Analytical Description of Quasi-Random Magnetization Relaxation to Equilibrium
No full textThe Landau-Lifshitz (LL) dynamics of a uniformly magnetized particle is considered. The LL equation is written in the form of a Hamiltonian perturbed dynamical system. By using suitable averaging technique, the equation for the slow dynamics of the energy is derived. The averaging technique breaks up in the case of separatrix crossing. It is shown that, in the limit of small damping, the separatrix crossing can be described by using a probabilistic approach
Critical fields and critical angles for pulse precessional switchings of thin magnetic films
No full text
Perturbation technique for Landau-Lifshitz-Gilbert equation under elliptically polarized fields
No full textNONLINEAR MAGNETIZATION DYNAMICS IN NANOSYSTEMS
No full textAs data transfer rates increase within the magnetic recording industry, improvements in device performance and reliability crucially depend on the thorough understanding of nonlinear magnetization dynamics at a sub-nanoscale level. This book offers a modern, stimulating approach to the subject of nonlinear magnetization dynamics by discussing important aspects such as the Landau-Lifshitz-Gilbert (LLG) equation, analytical solutions, and the connection between the general topological and structural aspects of dynamics. An advanced reference for the study and understanding of nonlinear magnetization dynamics, it addresses situations such as the understanding of spin dynamics in short time scales and device performance and reliability in magnetic recording. Topics covered include nonlinear magnetization dynamics and the Landau-Lifshitz-Gilbert equation, nonlinear dynamical systems, spin waves, ferromagnetic resonance and pulsed magnetization switching. The book explains how to derive exact analytical solutions for the complete nonlinear problem and emphasises the connection between the general topological and structural aspects of nonlinear magnetization dynamics and the discretization schemes better suited to its numerical study. It is an exceptional research tool providing an advanced understanding of the study of magnetization dynamics in situations of fundamental and technological interest
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