Bistable Magnetoresistance Switching in Exchange-Coupled CoFe2O4-Fe3O4 Binary Nanocrystal Superlattices by Self-Assembly and Thermal Annealing
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Soong Ju Oh | - |
dc.date.accessioned | 2021-09-03T09:47:43Z | - |
dc.date.available | 2021-09-03T09:47:43Z | - |
dc.date.created | 2021-06-21 | - |
dc.date.issued | 2013-02 | - |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/84521 | - |
dc.description.abstract | Self-assembly of multicomponent nanocrystal superlattices provides a modular approach to the design of metamaterials by choosing constituent nanocrystal building blocks with desired physical properties and engineering the interparticle coupling. In this work, we report the self-assembly of binary nanocrystal superlattices composed of magnetically hard CoFe2O4 nanocrystals and magnetically soft Fe3O4 nanocrystals. Both NaZn13- and MgZn2-type CoFe2O4-Fe3O4 binary nanocrystal superlattices have been formed by the liquid-air interfacial assembly approach. Exchange coupling is achieved in both types of binary superlattices after thermal annealing under vacuum at 400 degrees C. The exchange-coupled CoFe2O4-Fe3O4 binary nanocrystal superlattices show single-phase magnetization switching behavior and magnetoresistance switching behavior below 200 K. The NaZn13-type CoFe2O4-Fe3O4 binary nanocrystal superlattices annealed at 500 degrees C even exhibit bistable magnetoresistance switching behavior at room temperature constituting a simple nonvolatile memory function. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Bistable Magnetoresistance Switching in Exchange-Coupled CoFe2O4-Fe3O4 Binary Nanocrystal Superlattices by Self-Assembly and Thermal Annealing | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Soong Ju Oh | - |
dc.identifier.doi | 10.1021/nn3052617 | - |
dc.identifier.bibliographicCitation | ACS NANO, v.7, no.2, pp.1478 - 1486 | - |
dc.relation.isPartOf | ACS NANO | - |
dc.citation.title | ACS NANO | - |
dc.citation.volume | 7 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 1478 | - |
dc.citation.endPage | 1486 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | binary nanocrystal superlattices | - |
dc.subject.keywordAuthor | BNSLs | - |
dc.subject.keywordAuthor | self-assembly | - |
dc.subject.keywordAuthor | exchange coupling | - |
dc.subject.keywordAuthor | magnetoresistance | - |
dc.subject.keywordAuthor | magnetic nanocrystal | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.