Switching Diagram of Core-Shell FePt/Fe Nanocomposites for Bit Patterned Media.

Yuhui Wang, Ying Zheng, Ziyi Zhong, Zijun Wang, Yongfeng Liang, Pingping Wu

Abstract read

In one paragraph

Article in Materials (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Yuhui WangDepartment of Materials Science and Engineering, Xiamen Institute of Technology, Xiamen 361021, Fujian Province, China.

Ying ZhengDepartment of Materials Science and Engineering, Xiamen Institute of Technology, Xiamen 361021, Fujian Province, China.

Ziyi ZhongDepartment of Materials Science and Engineering, Xiamen Institute of Technology, Xiamen 361021, Fujian Province, China.

Zijun WangDepartment of Nuclear Physics, China Institute of Atomic Energy (CIAE), Beijing 102413, Beijing, China.

Yongfeng LiangState Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, Beijing, China.ORCID 0000-0002-7531-1108

Pingping WuDepartment of Materials Science and Engineering, Xiamen Institute of Technology, Xiamen 361021, Fujian Province, China.

Funding

Cultivating Advanced Functional Materials Research Group Program of Xiamen Institute of Technology KYTD202004Key Research and Development Program of the Science and Technology Ministry of China 2017YFA0403704National Natural Science Foundation of China 12075320State Key Lab for Advanced Metals and Materials in University of Science and Technology Beijing 2021-ZD02the outstanding young research talents program in colleges and universities of Fujian province 2016

6 · The paper itself

Abstract

In the current work, a core-shell type exchange coupled composite structure was constructed by micromagnetic simulation with a phase FePt core and an iron shell. Four types of switching loops with magnetic domain structure evolution were demonstrated. Based on the simulation results, a switching type diagram was constructed, which displays various hysteresis loops as a function of core radius and shell thickness. Furthermore, the effects of switching type and composite structure on the coercivity and remanent magnetization were predicted and discussed. This finding indicates that core-shell type FePt/Fe composite structure film has a large advantage in designing exchange-coupled bit patterned media to realize high-density storage devices at the nanoscale.

Indexed as

bit patterned mediacore-shellmagnetization switchingmicromagnetic simulation

Identifiers

PMID35407912

DOI10.3390/ma15072581

PMCPMC9000370

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.