MICROMAGNETICS

作品数：15被引量：20H指数：2
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A Second-Order Semi-Implicit Method for the Inertial Landau-Lifshitz-Gilbert Equation
《Numerical Mathematics(Theory,Methods and Applications)》2023年第1期182-203,共22页Panchi Li Lei Yang Jin Lan Rui Du Jingrun Chen 
P.Li is supported by the Postgraduate Research&Practice Innovation Program of Jiangsu Province(Grant No.KYCX202711);L.Yang is supported by the Science and Technology Development Fund,Macao SAR(Grant No.0070/2019/A2);the National Natural Science Foundation of China(NSFC)(Grant No.11701598);J.Lan is supported by NSFC(Grant No.11904260);the Natural Science Foundation of Tianjin(Grant No.20JCQNJC02020);R.Du was supported by NSFC(Grant No.11501399);J.Chen is supported by NSFC(Grant No.11971021).
Electron spins in magnetic materials have preferred orientations collectively and generate the macroscopic magnetization.Its dynamics spans over a wide range of timescales from femtosecond to picosecond,and then to na...
关键词：Inertial Landau-Lifshitz-Gilbert equation semi-implicit scheme second-order accuracy micromagnetics simulations 
Two-dimensional characterization of three-dimensional magnetic bubbles in Fe_(3)Sn_(2) nanostructures被引量：2
《National Science Review》2021年第6期182-188,共7页Jin Tang Yaodong Wu Lingyao Kong Weiwei Wang Yutao Chen Yihao Wang Y.Soh Yimin Xiong Mingliang Tian Haifeng Du 
This work was supported by the National Key Research and Development Program of China(2017YFA0303201);the Key Research Program of Frontier Sciences;Chinese Academy of Sciences(QYZDB-SSW-SLH009);the National Natural Science Foundation of China(11804343,11974021 and U1432138);the Strategic Priority Research Program of Chinese Academy of Sciences(XDB33030100);the Equipment Development Project of Chinese Academy of Sciences(YJKYYQ20180012);Universities Joint Key Laboratory of Photoelectric Detection Science and Technology in Anhui Province(2019GDTC06);Anhui Province Key Laboratory of Simulation and Design for Electronic Information System(2019ZDSYSZY04)。
We report differential phase contrast scanning transmission electron microscopy(TEM) of nanoscale magnetic objects in Kagome ferromagnet Fe_(3)Sn_(2) nanostructures. This technique can directly detect the deflection a...
关键词：SKYRMION skyrmion bubbles three-dimensional magnetic structures differential phase contrast scanning transmission electron microscopy MICROMAGNETICS 
Three-and two-dimensional calculations for the interface anisotropy dependence of magnetic properties of exchange-spring Nd2Fe(14)B/α-Fe multilayers with out-of-plane easy axes被引量：1
《Chinese Physics B》2020年第3期389-395,共7页Qian Zhao Xin-Xin He Francois-Jacques Morvan Guo-Ping Zhao Zhu-Bai Li 
Project supported by the National Key Research and Development Program of China(Grant No.2016YFB0700900);the National Natural Science Foundation of China(Grant Nos.51571126 and 51861030);the Inner Mongolia Autonomous Region Natural Science Foundation of China(Grant No.2019MS01002);the Inner Mongolia Innovative Research Team of China(Grant No.3400102)。
Hysteresis loops,energy products and magnetic moment distributions of perpendicularly oriented Nd2Fe(14)B/α-Fe exchange-spring multilayers are studied systematically based on both three-dimensional(3D)and one-dimensi...
关键词：MICROMAGNETICS interface anisotropy Nd2Fe(14)B/α-Fe MULTILAYERS MAGNETIC properties 
Computational Design of Rare-Earth Reduced Permanent Magnets被引量：2
《Engineering》2020年第2期148-153,共6页Alexander Kovacs Johann Fischbacher Markus Gusenbauer Harald Oezelt Heike C.Herper Olga Yu.Vekilova Pablo Nieves Sergiu Arapan Thomas Schrefl 
This work was supported by the EU H2020 project NOVAMAG(686056)and the Austrian Science Fund FWF(I3288-N36).Sergiu Arapan and Pablo Nieves acknowledge the European Regional Development Fund in the IT4Innovations National Supercomputing Center—path to exascale project(CZ 02.1.01/0.0/0.0/16-013/0001791)within the Operational Programme Research,Development and Education,and IT4Innovations computational resources allocated within projects OPEN-11-33,OPEN-14-23,and OPEN-17-14.
Multiscale simulation is a key research tool in the quest for new permanent magnets.Starting with first principles methods,a sequence of simulation methods can be applied to calculate the maximum possible coercive fie...
关键词：RARE-EARTH PERMANENT MAGNETS MICROMAGNETICS 
A hybrid coercivity mechanism for exchange-coupled nanocomposite permanent magnets被引量：5
《Journal of Rare Earths》2019年第10期1030-1033,共4页Lei Qiu Li Zhao Xiaojiao Weng Laichuan Shen Guoping Zhao Fang Wang Linhua Xie 
Project supported by National Natural Science Foundation of China(51771127,51571126,51772004)
We propose a hybrid coercivity mechanism for exchange-coupled hard/soft multilayers, which incorporates elements of both the traditional nucleation and pinning mechanisms based on both threedimensional(3 D) and one-di...
关键词：COERCIVITY mechanism Hard/soft MULTILAYERS HYBRID model MICROMAGNETICS RARE earths 
Periodic Boundary Conditions for Finite-Differentiation-Method Fast-Fourier-Transform Micromagnetics
《Chinese Physics Letters》2017年第4期97-100,共4页Jiang-Nan Li Dan Wei 
Supported by the National Natural Science Foundation of China under Grant Nos 51171086 and 51371101
We describe an accurate periodic boundary condition （PBC） called the symmetric PBC in the calculation of the magnetostatie interaction field in the finite-differentiation-method fast-Fourier-transform （FDM-FFT） mi...
关键词：PBC FDM Periodic Boundary Conditions for Finite-Differentiation-Method Fast-Fourier-Transform Micromagnetics FFT 
Effect of exchange coupling on magnetic property in Sm–Co/α-Fe layered system被引量：1
《Chinese Physics B》2016年第3期380-386,共7页桑成祥 赵国平 夏卫星 万秀琳 F J Morvan 张溪超 谢林华 张健 杜娟 闫阿儒 刘平 
Project supported by the National Natural Science Foundation of China(Grant Nos.11074179 and 10747007);the National Basic Research Program of Chi(Grant No.2014CB643702);the Zhejiang Provincial Natural Science Foundation of China(Grant No.LY14E010006);the Construction Plan for Scientif Research Innovation Teams of Universities in Sichuan Province,China(Grant No.12TD008);the Scientific Research Foundation for the Returned Overse Chinese Scholars of the Education Ministry,China;the Program for Key Science and Technology Innovation Team of Zhejiang Province,China(Gra No.2013TD08)
The hysteresis loops as well as the spin distributions of Sm-Co/a-Fe bilayers have been investigated by both three- dimensional （3D） and one-dimensional （1D） micromagnetic calculations, focusing on the effect of t...
关键词：hysteresis loops exchange coupling MICROMAGNETICS hard/soft bilayers 
Microwave permeability of single cobalt nanotube studied by micromagnetics simulations and generalized Snoek's law被引量：1
《Science China(Technological Sciences)》2014年第2期254-258,共5页HAN ManGui GUO Wei DENG LongJiang 
supported by the National Natural Science Foundation of China(Grant No.61271039);the Scientific Foundation of Young Scientists of Sichuan Province(Grant No.2012JQ0053);the Program for New Century Excellent Talents in Universities(NCET-11-0060)
Microwave permeability spectra of single Co nanotube under equilibrium state have been studied by micromagnetics simulation.More than four obvious resonance peaks have been found(11.72,24.20,33.18 and 39.55 GHz).Such ...
关键词：micromagnetics simulation microwave permeability cobalt nanotube Snoek＇s law 
Investigation on mechanism of magnetization reversal for nanocrystalline Pr-Fe-B permanent magnets by micromagnetic finite element methods被引量：4
《Journal of Rare Earths》2009年第1期145-149,共5页郑波 赵素芬 
supported by the National Natural Science Foundation of China (10574156)
Magnetization configurations were calculated under various magnetic fields for nanocrystalline Pr-Fe-B permanent magnets by micromagnetic finite element method.According to the configurations during demagnetization pr...
关键词：nanocrystalline permanent magnets COERCIVITY MICROMAGNETICS finite element method rare earths 
Magnetization Reversal for Ni Nanowires Studied by Micromagnetic Simulations
《Journal of Materials Science & Technology》2009年第2期151-154,共4页Nianmei Hen Guanghua Guo Lamei Zhang Guangfu Zhang Wenbin Song 
supported by the National Natural Sci-ence Foundation of China under Grant No. 60571043; the Natural Science Foundation of Hunan Provinceof China under Grant No. 04JJ3078.
The magnetization reversal mechanisms for Ni nanowires with different diameters were investigated by micromagnetic simulations. The results show that the reversal mechanisms are significantly dependeht on the diameter...
关键词：NANOWIRE MICROMAGNETICS Magnetization reversal mechanism 
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