首页|Controllable nucleation and deformation of skyrmions on surface of magnetic nanotubular monolayer

Controllable nucleation and deformation of skyrmions on surface of magnetic nanotubular monolayer

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Magnetic skyrmions emerge when the energy of ferromagnetic exchange interaction promoting parallel alignment of spins enters in competition with energies favoring non-collinear alignment of spins such as Dzyaloshinskii-Moriya interaction(DMI),long-rang dipole-dipole interaction(DDI),or higher-order exchange interactions.We perform an unbiased Monte Carlo simu-lation to study the DMI-based skyrmion nucleation and stabilization on the surface of magnetic nanotubular monolayer controlled by tuning constants of DDI(g)and next-nearest-neighbor antiferromagnetic exchange interac-tion(j')with appropriate balance.Without g and j',the loosely distributed skyrmions initially nucleate on the surface of nanotube approaching to the magnetic field(h)direction with increasing h in the intermediate range.Then,the skyrmion size,shape,density,distribution and crystal structure,as well as its driven field range,are tai-lored by g and j'.This work demonstrates the skyrmion nucleation mechanisms in three-dimensional magnetic nanostructures with curvature effect and multiple interactions,serving as a benchmark for a guide to exper-imentalists for preparation of samples in magnetic sky-rmion states.

Magnetic nanotubeMagnetic skyrmionDzyaloshinskii-Moriya interactionDipole-dipole interactionMonte Carlo simulation

Xin-Xin Zhang、Chen-Yu Zhang、Yi-Xin Xing、Chao Man、Jiao Liu、Yong Hu

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Department of Physics,College of Sciences,Northeastern University,Shenyang 110819,China

School of Materials and Mineral Resources Engineering,Universiti Sains Malaysia,Engineering Campus,14300 Nibong Tebal,Penang,Malaysia

State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,China

Key Program of National Natural Science Foundation of China-Regional Innovation and Development Joint FundNatural Science Foundation of Liaoning ProvinceFundamental Research Funds for Central Universities

U22A201172022-MS-108N2205015

2024

10.1007/s12598-024-02630-y

稀有金属(英文版)
中国有色金属学会

稀有金属(英文版)

CSTPCDEI
影响因子：0.801
ISSN：1001-0521
年,卷(期)：2024.43(7)
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