Finite-temperature dynamical and static properties of Nd magnets studied by an atomistic modeling
Source abstract
Abstract
We investigate static and dynamical properties of the Nd permanent magnet, Nd2Fe14B, using a recently developed atomistic model. We show the temperature dependence of magnetizations and domain wall profiles by a Monte Carlo method. With the use of the stochastic Landau-Lifshitz-Gilbert method, we present an unusual temperature dependence of the ferromagnetic resonance frequency. By introducing a statistical method which extends the limitation of the simulation time, we estimate the coercive force of a single grain. We also show the surface anisotropy effect of Nd atoms on the coercive force and nucleation and pinning fields in a prototype hard-soft-hard magnet model.
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Research context
OpenAlex topics: Magnetic Properties of Alloys · Magnetic properties of thin films · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Research Center for Advanced Measurement and Characterization, National Institute for Materials Science 1 , 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
Elements Strategy Initiative Center for Magnetic Materials, National Institute for Materials Science 2 , 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
Institute for Solid State Physics, The University of Tokyo 3 , 5-1-5 Kashiwanoha, Kashiwa 277-8581, Japan
Funding
ESICMM · Ministry of Education, Culture, Sports, Science and Technology
References (47)
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