Drastic enhancement of stable and fast domain wall motion in GdFe nanowires through laser-annealing treatment at wire edges

纳米线 材料科学 退火(玻璃) 激光器 纳米光刻 光电子学 纳米技术 光学 复合材料 物理 制作 医学 病理 替代医学
作者
Mojtaba Mohammadi,Yamato Miyose,Satoshi Sumi,Kenji Tanabe,Hiroyuki Awano
出处
期刊:AIP Advances [American Institute of Physics]
卷期号:14 (2) 被引量:1
标识
DOI:10.1063/9.0000747
摘要

One of the key challenges in racetrack memory (RM) technology is achieving stable and high velocities for domain walls (DWs) while maintaining low power consumption. In our study, we propose a novel laser-annealing (LA) process to modify wire edges for a smoother DW movement along the nanowire. In this regard, a film stack of Pt (5 nm)/Gd26Fe74(20 nm)/SiN(10 nm) was deposited by magnetron sputtering. The DW velocity in the wire was measured by applying single voltage pulses and then observing the DW motion using a Kerr microscope. The current-induced domain walls motion measurements have shown that the LA process significantly enhances the velocity of DW motion. The LA of both edges of the nanowire results in a threefold increase in DW velocity compared to non-LA conditions. Further experiments illustrated that the DW velocity remains stable for the laser-annealed condition across a wide range of applied currents, spanning from 3 × 1011 to 7 × 1011 A/m2. Additionally, our investigation into the magnetic characteristics of laser-annealed nanowire regions exhibited a notable reduction of Hc at the laser-annealed edges. This decrease in Hc indicates greater ease in manipulating the material’s magnetization, which is essential for efficient DW motion. Furthermore, we explored the influence of LA on the Dzyaloshinskii–Moriya Interaction (DMI) field. The DMI finding underscores the strong correlation between DMI fields and DW speed. This achievement, i.e. the stability and consistency of the domain’s velocity (as the components of an RM) in a wide range of applied current, is significant progress in the field of operation and industrialization of RM.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
思源应助科研01采纳,获得10
刚刚
wanci应助实验大牛采纳,获得10
刚刚
初夏发布了新的文献求助10
刚刚
北风发布了新的文献求助10
1秒前
andrele发布了新的文献求助10
2秒前
3秒前
甜甜圈完成签到 ,获得积分10
3秒前
领导范儿应助喔喔采纳,获得10
3秒前
4秒前
Lucas应助淡淡的冥茗采纳,获得10
5秒前
传奇3应助tan采纳,获得10
5秒前
落叶完成签到,获得积分20
6秒前
科研通AI5应助sxy0604采纳,获得10
8秒前
落叶发布了新的文献求助10
9秒前
12秒前
Hello应助科研通管家采纳,获得10
14秒前
邓佳鑫Alan应助科研通管家采纳,获得10
14秒前
AAA应助科研通管家采纳,获得10
14秒前
14秒前
maox1aoxin应助科研通管家采纳,获得30
14秒前
邓佳鑫Alan应助科研通管家采纳,获得10
15秒前
科目三应助科研通管家采纳,获得10
15秒前
15秒前
情怀应助科研通管家采纳,获得10
15秒前
邓佳鑫Alan应助科研通管家采纳,获得10
15秒前
华仔应助科研通管家采纳,获得10
15秒前
15秒前
邓佳鑫Alan应助科研通管家采纳,获得10
15秒前
15秒前
diandian1108应助科研通管家采纳,获得10
15秒前
Akim应助科研通管家采纳,获得10
15秒前
科研通AI2S应助科研通管家采纳,获得10
15秒前
16秒前
邓佳鑫Alan应助科研通管家采纳,获得10
16秒前
m0nesy应助科研通管家采纳,获得10
16秒前
胡萝卜应助科研通管家采纳,获得10
16秒前
16秒前
搜集达人应助科研通管家采纳,获得10
16秒前
AAA应助科研通管家采纳,获得10
16秒前
星辰大海应助落叶采纳,获得10
16秒前
高分求助中
Production Logging: Theoretical and Interpretive Elements 2700
Neuromuscular and Electrodiagnostic Medicine Board Review 1000
こんなに痛いのにどうして「なんでもない」と医者にいわれてしまうのでしょうか 510
The First Nuclear Era: The Life and Times of a Technological Fixer 500
岡本唐貴自伝的回想画集 500
Distinct Aggregation Behaviors and Rheological Responses of Two Terminally Functionalized Polyisoprenes with Different Quadruple Hydrogen Bonding Motifs 450
Ciprofol versus propofol for adult sedation in gastrointestinal endoscopic procedures: a systematic review and meta-analysis 400
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 物理 生物化学 纳米技术 计算机科学 化学工程 内科学 复合材料 物理化学 电极 遗传学 量子力学 基因 冶金 催化作用
热门帖子
关注 科研通微信公众号,转发送积分 3670761
求助须知:如何正确求助?哪些是违规求助? 3227655
关于积分的说明 9776657
捐赠科研通 2937838
什么是DOI,文献DOI怎么找? 1609653
邀请新用户注册赠送积分活动 760441
科研通“疑难数据库(出版商)”最低求助积分说明 735894