journal article·2018-05-01Open access

Merging magnetic droplets by a magnetic field pulse

Chengjie Wang, Dun Xiao, Yaowen Liu

AIP Advances· Volume 8· Issue 5

Abstract

Reliable manipulation of magnetic droplets is of immense importance for their applications in spin torque oscillators. Using micromagnetic simulations, we find that the antiphase precession state, which originates in the dynamic dipolar interaction effect, is a favorable stable state for two magnetic droplets nucleated at two identical nano-contacts. A magnetic field pulse can be used to destroy their stability and merge them into a big droplet. The merging process strongly depends on the pulse width as well as the pulse strength.
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Research context

OpenAlex topics: Magnetic properties of thin films · Characterization and Applications of Magnetic Nanoparticles · Theoretical and Computational Physics

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Affiliations

Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, School of Physics Science and Engineering, Tongji University , Shanghai 200092, China

Funding

National Basic Research Program of China · National Natural Science Foundation of China

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