Real-space phase field investigation of evolving magnetic domains and twin structures in a ferromagnetic shape memory alloy

doi:10.1063/1.4967531

	Real-space phase field investigation of evolving magnetic domains and twin structures in a ferromagnetic shape memory alloy
	Wu, HH; Ke, YB; Ke YB(柯于斌); Pramanick, A; Wang, XL
刊名	JOURNAL OF APPLIED PHYSICS
	2016
卷号	120 期号:18
DOI	10.1063/1.4967531
英文摘要	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.
学科主题	Physics
语种	英语
WOS记录号	WOS:000388734700012
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/260207]
专题	高能物理研究所_东莞分部
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Wu, HH,Ke, YB,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,Ke, YB,柯于斌,Pramanick, A,&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).