Interfacial Perpendicular Magnetic Anisotropy in Magnetic Tunnel Junctions Comprising CoFeB with FeNiSiB Layers
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Do Kyun | - |
dc.contributor.author | Lee, Minhyeok | - |
dc.contributor.author | Joo, Junghoon | - |
dc.contributor.author | Kim, Young Keun | - |
dc.date.accessioned | 2021-08-31T15:04:42Z | - |
dc.date.available | 2021-08-31T15:04:42Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2020-01 | - |
dc.identifier.issn | 1738-8090 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/58500 | - |
dc.description.abstract | Controlling ferromagnetic thickness (t) and properties such as saturation magnetization (M-s) and effective magnetic anisotropy constant (K-eff) has been regarded as critical for the performance of magnetic tunnel junctions (MTJs) with interfacial perpendicular magnetic anisotropy. Here, we report the effects of hybridizing a CoFeB layer with a FeNiSiB layer as part of a magnetic free layer structure. We deposited thin film stacks by magnetron sputtering on Si wafers with thermal oxides and carried out post-deposition heat treatment at 300 degrees C for 1 h in a vacuum under a magnetic field. We found that M-s and K-eff could be tuned by adding a layer of amorphous FeNiSiB. While the M-s and K-eff values were modified, the tunneling magnetoresistance (TMR) ratios of the MTJs were maintained, even though the CoFeB thickness was decreased by half. Moreover, an asymmetric bias voltage dependence of TMR was suppressed in the MTJs with FeNiSiB/CoFeB hybrid free layers due to improvements in the interface quality between the CoFeB/MgO interfaces. Graphic | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | KOREAN INST METALS MATERIALS | - |
dc.title | Interfacial Perpendicular Magnetic Anisotropy in Magnetic Tunnel Junctions Comprising CoFeB with FeNiSiB Layers | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Young Keun | - |
dc.identifier.doi | 10.1007/s13391-019-00183-2 | - |
dc.identifier.scopusid | 2-s2.0-85075383706 | - |
dc.identifier.wosid | 000511695900005 | - |
dc.identifier.bibliographicCitation | ELECTRONIC MATERIALS LETTERS, v.16, no.1, pp.35 - 40 | - |
dc.relation.isPartOf | ELECTRONIC MATERIALS LETTERS | - |
dc.citation.title | ELECTRONIC MATERIALS LETTERS | - |
dc.citation.volume | 16 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 35 | - |
dc.citation.endPage | 40 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART002547296 | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordAuthor | Perpendicular magnetic anisotropy | - |
dc.subject.keywordAuthor | Magnetic tunnel junction | - |
dc.subject.keywordAuthor | Hybrid free layer | - |
dc.subject.keywordAuthor | CoFeB | - |
dc.subject.keywordAuthor | FeNiSiB | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
145 Anam-ro, Seongbuk-gu, Seoul, 02841, Korea+82-2-3290-2963
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.