Exchange-Coupling Interaction in Zero- and One-Dimensional Sm2Co17/FeCo Core-Shell Nanomagnets
DC Field | Value | Language |
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dc.contributor.author | Lee, Jimin | - |
dc.contributor.author | Kim, Jiwon | - |
dc.contributor.author | Kim, Danbi | - |
dc.contributor.author | Lee, Gyutae | - |
dc.contributor.author | Oh, Yeong-Been | - |
dc.contributor.author | Hwang, Tae-Yeon | - |
dc.contributor.author | Lim, Jae-Hong | - |
dc.contributor.author | Cho, Hong-Baek | - |
dc.contributor.author | Kim, Jongryoul | - |
dc.contributor.author | Choa, Yong-Ho | - |
dc.date.available | 2020-02-27T02:41:25Z | - |
dc.date.created | 2020-02-04 | - |
dc.date.issued | 2019-07-24 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/1232 | - |
dc.description.abstract | Rare-earth-based core shell spring nanomagnets have been intensively studied in the permanent magnet industry. However, the inherent agglomeration characteristics of zero-dimensional (0-D) magnetic nanoparticles are an issue in practical fabrication of magnetic nanocomposites due to deterioration in exchange-coupling interactions, resulting in inferior magnetic performance. Here, with an aim to overcome the structural limitations, we report a new type of SmCo/FeCo core shell nanomagnet with a well-dispersed one-dimensional (1-D) structure prepared by a combination of electrospinning and electroless plating processes. An FeCo layer with a tailored thickness on nanoscale SmCo was produced to achieve a sufficient exchange-coupling effect. The influence of electroless plating time on the microstructure of fibers was discussed, and comparisons were made as a function of the magnet shape. A 1-D SmCo/FeCo spring nanomagnet having a core diameter ranging from 150 to 200 nm and a shell thickness of 15-20 nm showed a potent exchange coupling effect compared with its 0-D counterpart. This effectively reduced self-aggregation and further showed a remarkable enhancement in (BH)max (above 45.7%). We think that this novel structure marks a new era in the exchange-spring magnet industry and may overcome the limitations of traditional core shell nanomagnets. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.relation.isPartOf | ACS APPLIED MATERIALS & INTERFACES | - |
dc.subject | MAGNETIC-PROPERTIES | - |
dc.subject | ENERGY PRODUCT | - |
dc.subject | CHEMICAL-SYNTHESIS | - |
dc.subject | MICROSTRUCTURE | - |
dc.title | Exchange-Coupling Interaction in Zero- and One-Dimensional Sm2Co17/FeCo Core-Shell Nanomagnets | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000477787200063 | - |
dc.identifier.doi | 10.1021/acsami.9b02966 | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.11, no.29, pp.26222 - 26227 | - |
dc.identifier.scopusid | 2-s2.0-85070421298 | - |
dc.citation.endPage | 26227 | - |
dc.citation.startPage | 26222 | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 11 | - |
dc.citation.number | 29 | - |
dc.contributor.affiliatedAuthor | Lim, Jae-Hong | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | permanent magnet | - |
dc.subject.keywordAuthor | Sm2Co17/FeCo nanocomposite magnets | - |
dc.subject.keywordAuthor | core-shell nanomagnet | - |
dc.subject.keywordAuthor | exchange-coupling effect | - |
dc.subject.keywordAuthor | shape tuning | - |
dc.subject.keywordAuthor | electroless plating | - |
dc.subject.keywordPlus | MAGNETIC-PROPERTIES | - |
dc.subject.keywordPlus | ENERGY PRODUCT | - |
dc.subject.keywordPlus | CHEMICAL-SYNTHESIS | - |
dc.subject.keywordPlus | MICROSTRUCTURE | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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