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Real-space phase field investigation of evolving magnetic domains and twin structures in a ferromagnetic shape memory alloy
Wu, HH; Pramanick, A; Ke YB(柯于斌); Ke, YB; Wang, XL
2016
发表期刊JOURNAL OF APPLIED PHYSICS
卷号120期号:18
文章类型Article
摘要A real-space phase field model combining Landau-Lifshitz-Gilbert equation and time-dependent Ginzburg-Landau equation is developed to investigate the evolution of ferromagnetic domains and martensitic twin structures in a ferromagnetic shape memory alloy at different lengthscales. Both domain and twin structures are obtained by simultaneously solving for minimization of magnetic, elastic, and magnetoelastic coupling energy terms via a nonlinear finite element method. The model is applied to simulate magneto-structural evolution within a nanoparticle and a bulk single-crystal of the alloy Ni2MnGa, which are subjected to mechanical strains. It is shown that a nanoparticle contains magnetic vortex structures within a single twin variant, whereas for a bulk crystal both 90 degrees and 180 degrees domain structures are present within multiple twin variants. Published by AIP Publishing.
学科领域Physics
DOI10.1063/1.4967531
关键词[WOS]MN-GA ALLOYS ; MARTENSITIC STEELS ; INDUCED STRAIN ; IN-SITU ; MODEL ; MICROSTRUCTURE ; TRANSITIONS ; EVOLUTION ; SIMULATION
收录类别SCI ; EI
语种英语
WOS类目Physics, Applied
WOS记录号WOS:000388734700012
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260207
专题东莞分部
作者单位中国科学院高能物理研究所
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GB/T 7714
Wu, HH,Pramanick, A,Ke YB,et al. Real-space phase field investigation of evolving magnetic domains and twin structures in a ferromagnetic shape memory alloy[J]. JOURNAL OF APPLIED PHYSICS,2016,120(18).
APA Wu, HH,Pramanick, A,柯于斌,Ke, YB,&Wang, XL.(2016).Real-space phase field investigation of evolving magnetic domains and twin structures in a ferromagnetic shape memory alloy.JOURNAL OF APPLIED PHYSICS,120(18).
MLA Wu, HH,et al."Real-space phase field investigation of evolving magnetic domains and twin structures in a ferromagnetic shape memory alloy".JOURNAL OF APPLIED PHYSICS 120.18(2016).
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