کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1797682 1524800 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Proposal of a micromagnetic standard problem for ferromagnetic resonance simulations
ترجمه فارسی عنوان
پیشنهاد یک مشکل استاندارد مغناطیسی برای شبیه سازی تشدید فرومغناطیسی
کلمات کلیدی
رزونانس فرومغناطیس؛ شبیه سازی میکرو مغناطیسی؛ مشکل استاندارد میکرو مغناطیسی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
چکیده انگلیسی

●Micromagnetic standard problem for FerroMagnetic Resonance (FMR).●Overview of FMR simulation techniques.●Define reproducible test problem with ring down method.●Example configuration files, scripts and post processing for OOMMF and NMag.●Code and data available in Ref. [23].

Nowadays, micromagnetic simulations are a common tool for studying a wide range of different magnetic phenomena, including the ferromagnetic resonance. A technique for evaluating reliability and validity of different micromagnetic simulation tools is the simulation of proposed standard problems. We propose a new standard problem by providing a detailed specification and analysis of a sufficiently simple problem. By analyzing the magnetization dynamics in a thin permalloy square sample, triggered by a well defined excitation, we obtain the ferromagnetic resonance spectrum and identify the resonance modes via Fourier transform. Simulations are performed using both finite difference and finite element numerical methods, with OOMMF and Nmag simulators, respectively. We report the effects of initial conditions and simulation parameters on the character of the observed resonance modes for this standard problem. We provide detailed instructions and code to assist in using the results for evaluation of new simulator tools, and to help with numerical calculation of ferromagnetic resonance spectra and modes in general.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 421, 1 January 2017, Pages 428–439
نویسندگان
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