Field-Free switching of Antiferromagnetically Coupled Co/Pd-Based perpendicular multi-layer via combined spin torques

IF 3 3区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Magnetism and Magnetic Materials Pub Date : 2025-04-15 Epub Date: 2025-02-12 DOI:10.1016/j.jmmm.2025.172872
Da Pan , Ryota Yabushita , Daiki Oshima , Takeshi Kato
{"title":"Field-Free switching of Antiferromagnetically Coupled Co/Pd-Based perpendicular multi-layer via combined spin torques","authors":"Da Pan ,&nbsp;Ryota Yabushita ,&nbsp;Daiki Oshima ,&nbsp;Takeshi Kato","doi":"10.1016/j.jmmm.2025.172872","DOIUrl":null,"url":null,"abstract":"<div><div>Spin-transfer torque combined with spin–orbit torque switching is considered a highly promising writing mechanism for advancing large storage density magnetic random-access memory with perpendicular magnetic anisotropy, due to its capability for field-free operation. Meantime, synthetic antiferromagnet has also gathered significant attention owing to its advantage in enhancing thermal stability while keeping the switching current low, which is crucial for achieving high-capacity MRAM. We manufactured Giant Magnetoresistance (GMR) devices utilizing a synthetic antiferromagnetic (SAF) free layer, and found that the SOT switching was assisted by STT even in SAF free layer, which has not been reported, and that the effect of STT assisting was significantly different from that for ferromagnetic free layer.</div></div>","PeriodicalId":366,"journal":{"name":"Journal of Magnetism and Magnetic Materials","volume":"618 ","pages":"Article 172872"},"PeriodicalIF":3.0000,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Magnetism and Magnetic Materials","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0304885325001039","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/12 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

Spin-transfer torque combined with spin–orbit torque switching is considered a highly promising writing mechanism for advancing large storage density magnetic random-access memory with perpendicular magnetic anisotropy, due to its capability for field-free operation. Meantime, synthetic antiferromagnet has also gathered significant attention owing to its advantage in enhancing thermal stability while keeping the switching current low, which is crucial for achieving high-capacity MRAM. We manufactured Giant Magnetoresistance (GMR) devices utilizing a synthetic antiferromagnetic (SAF) free layer, and found that the SOT switching was assisted by STT even in SAF free layer, which has not been reported, and that the effect of STT assisting was significantly different from that for ferromagnetic free layer.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
利用组合自旋力矩实现反铁磁耦合Co/ pd基垂直多层的无场开关
自旋转移转矩结合自旋轨道转矩开关被认为是一种非常有前途的写入机制,用于推进具有垂直磁各向异性的大存储密度磁随机存取存储器,因为它具有无场操作的能力。与此同时,合成反铁磁体也因其在保持低开关电流的同时提高热稳定性的优势而受到广泛关注,这对于实现高容量MRAM至关重要。我们利用人工合成的反铁磁(SAF)自由层制备了巨磁电阻(GMR)器件,发现即使在反铁磁(SAF)自由层中,STT也能辅助SOT开关,这一现象尚未见报道,而且STT的辅助效果与铁磁自由层有显著不同。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Journal of Magnetism and Magnetic Materials
Journal of Magnetism and Magnetic Materials 物理-材料科学:综合
CiteScore
5.30
自引率
11.10%
发文量
1149
审稿时长
59 days
期刊介绍: The Journal of Magnetism and Magnetic Materials provides an important forum for the disclosure and discussion of original contributions covering the whole spectrum of topics, from basic magnetism to the technology and applications of magnetic materials. The journal encourages greater interaction between the basic and applied sub-disciplines of magnetism with comprehensive review articles, in addition to full-length contributions. In addition, other categories of contributions are welcome, including Critical Focused issues, Current Perspectives and Outreach to the General Public. Main Categories: Full-length articles: Technically original research documents that report results of value to the communities that comprise the journal audience. The link between chemical, structural and microstructural properties on the one hand and magnetic properties on the other hand are encouraged. In addition to general topics covering all areas of magnetism and magnetic materials, the full-length articles also include three sub-sections, focusing on Nanomagnetism, Spintronics and Applications. The sub-section on Nanomagnetism contains articles on magnetic nanoparticles, nanowires, thin films, 2D materials and other nanoscale magnetic materials and their applications. The sub-section on Spintronics contains articles on magnetoresistance, magnetoimpedance, magneto-optical phenomena, Micro-Electro-Mechanical Systems (MEMS), and other topics related to spin current control and magneto-transport phenomena. The sub-section on Applications display papers that focus on applications of magnetic materials. The applications need to show a connection to magnetism. Review articles: Review articles organize, clarify, and summarize existing major works in the areas covered by the Journal and provide comprehensive citations to the full spectrum of relevant literature.
期刊最新文献
Rare-earth-induced spin polarization and optical modulation in Ce-doped GaP nanosheets: implications for spintronic devices Improved equations for core loss prediction under asymmetric triangular excitation waveforms based on improved generalized Steinmetz equation Spin wave modes in Pacman-shaped disks with perpendicular uniaxial anisotropy Synergistic ferroelectric–magnetic interactions and magnetoelectric response in (PrFeO₃)₀.₂₄-(PbZr₀.₅₂Ti₀.₄₈O₃)₀.₇₆ solid solution Macro-fibre composite-based epoxy-free magnetoelectric structures fabricated from electroless and electrodeposition techniques
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1