journal article·2016-03-01Open access

Domain stability and polar-vortex transformations controlled by mechanical loads in soft ferromagnetic nanodots

Qiang Sheng, X. L. Liu, W. J. Chen, W. M. Xiong, G. L. Jiang, Yue Zheng

AIP Advances· Volume 6· Issue 3

Abstract

Phase field simulations are performed to investigate the domain structures of soft ferromagnetic nanodots. It is found that the stability of the domain state is sensitive to its lateral dimensions. As the lateral dimensions increase, the stable domain state gradually changes from polar to vortex, with a transitional region where both the two ordered states are stable. Interestingly, the phase diagram is also a strong function of mechanical loads. By appropriately choosing the lateral dimensions, transformations between polar and vortex states can be induced or controlled by mechanical loads. The study provides instructive information for the applications of ferromagnetic nanostructures.
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Research context

OpenAlex topics: Anodic Oxide Films and Nanostructures · Magnetic properties of thin films · Acoustic Wave Resonator Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Harbin Institute of Technology 1 Shenzhen Key Laboratory of Advanced Materials, Shenzhen Engineering Lab of Flexible Transparent Conductive Films, Department of Materials Science and Engineering, Shenzhen Graduate School, , Shenzhen 518055, China

Sun Yat-sen University 2 State Key Laboratory of Optoelectronic Materials and Technologies, , 510275, Guangzhou, China

Sun Yat-sen University 3 Micro&Nano Physics and Mechanics Research Laboratory, School of Physics and Engineering, , 510275, Guangzhou, China

Sun Yat-sen University 4 Sino-French Institute of Nuclear Engineering and Technology, , 519082, Zhuhai, China

Funding

National Natural Science Foundation of China

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