Large-scale area of magnetically anisotropic nanoparticle monolayer films deposited by MAPLE

Lei Zhang ¹Feng Xu ²Jian Zhang ³Baoru Bian ³Yong Hu ⁴Fei Xue ²Juan Du⁵

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作者信息

1. Key Laboratory of Magnetic Materials and Devices,Ningbo Institute of Material Technology&Engineering,Chinese Academy of Sciences,Ningbo 315201,China;University of Chinese Academy of Sciences,Beijing 100049,China
2. Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions,High Magnetic Field Laboratory,Chinese Academy of Sciences,Hefei 230031,China
3. Key Laboratory of Magnetic Materials and Devices,Ningbo Institute of Material Technology&Engineering,Chinese Academy of Sciences,Ningbo 315201,China
4. College of Sciences,Northeastern University,Shenyang 110819,China
5. Institute of Materials,School of Materials Science and Engineering,Shanghai University,Shanghai 200444,China
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Abstract

Magnetically anisotropic nanoparticle monolayer films are of great interest for the development of ap-plications such as high-density data storage,sensors.However,the formation of large-scale magnetically anisotropic monolayer film is a challenging task.Here,we provide a new way to fabricate large-scale area of Fe3O4 nanoparticle monolayer films by vacuum deposition technique(matrix-assisted pulsed laser evaporation,MAPLE).During the deposition process,only interactions between nanoparticles influence nanoparticle self-assembly behaviors.A strong magnetic anisotropy,characterized by in-plane and out-of-plane coercivity and saturation field obtained by DCM(dynamic cantilever magnetometry),was obtained both in cubic and spherical Fe3O4 nanoparticle monolayer films.The inter-particle dipolar interaction but not crystal anisotropy is responsible for this effective magnetic anisotropy,which has been proved by Monte-Carlo simulations.

Key words

Nanoparticle monolayer film/Magnetic anisotropy/MAPLE/Dynamic cantilever magnetometry/Monte-Carlo simulation/Dipolar interaction

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基金项目

National Nat-ural Science Foundation of China(51771219)

National Nat-ural Science Foundation of China(51771220)

National Nat-ural Science Foundation of China(52171184)

Zhejiang Provincial Natural Science Foun-dation of China(LD19E010001)

Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science(20180510008)

National Key Research and Development Pro-gram of China(2017YFA0303201)

Major Program of Devel-opment Foundation of Hefei Center for Physical Science and Tech-nology(2017FXZY003)

出版年

2022

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCDSCI

影响因子：0.657

ISSN：1005-0302

参考文献量34

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