发布求助
文献互助 智能选刊 最新文献

2022 IEEE 33rd Magnetic Recording Conference (TMRC)最新文献

筛选
英文 中文
Hysteresis loops of recording media grains under the influence of high frequency fields 高频场作用下记录介质颗粒的磁滞回线
2022 IEEE 33rd Magnetic Recording Conference (TMRC) Pub Date : 2022-08-01 DOI: 10.1109/tmrc56419.2022.9918539
S. Greaves, Y. Kanai
{"title":"Hysteresis loops of recording media grains under the influence of high frequency fields","authors":"S. Greaves, Y. Kanai","doi":"10.1109/tmrc56419.2022.9918539","DOIUrl":"https://doi.org/10.1109/tmrc56419.2022.9918539","url":null,"abstract":"A potential technology for use in future hard disk drives is microwave-assisted magnetic recording (MAMR). In a MAMR drive a spin-torque oscillator (STO) is integrated into the write head and applies a high frequency (HF) magnetic field to the recording medium along with the field from the write head. The HF field reduces the switching field of the medium, allowing media with higher uniaxial anisotropy to be used. As the write head moves over the recording medium the HF field seen by the medium grains changes from elliptical to circular to linear and back again. In this work the influence of circular, elliptical and linear HF fields on recording media was examined by calculating hysteresis loops for single and multiple grains.","PeriodicalId":432413,"journal":{"name":"2022 IEEE 33rd Magnetic Recording Conference (TMRC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127940065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Neural Network Equalization for Asynchronous Multitrack Detection in TDMR TDMR中异步多轨检测的神经网络均衡
2022 IEEE 33rd Magnetic Recording Conference (TMRC) Pub Date : 2022-07-06 DOI: 10.1109/TMRC56419.2022.9918163
E. Sadeghian
{"title":"Neural Network Equalization for Asynchronous Multitrack Detection in TDMR","authors":"E. Sadeghian","doi":"10.1109/TMRC56419.2022.9918163","DOIUrl":"https://doi.org/10.1109/TMRC56419.2022.9918163","url":null,"abstract":"The advent of multiple readers in magnetic recording opens the possibility of replacing the current industry's single-track detection with the more promising multitrack detection architectures. We have proposed a first solution, a generalized partial-response maximum-likelihood (GPRML) architecture, that extends the conventional PRML paradigm to jointly detect multiple asynchronous tracks. In this paper, we propose to replace the conventional communication-theoretic multiple-input multiple-output equalizer in the GPRML architecture with a neural network equalizer for better adaption to the nonlinearity of the underlying channel. We evaluate the proposed equalization strategy on a realistic two-dimensional magnetic-recording channel, and find that the proposed equalizer outperforms the conventional linear equalizer, by a 37% reduction in the bit-error rate and a 33% gain in the areal density.","PeriodicalId":432413,"journal":{"name":"2022 IEEE 33rd Magnetic Recording Conference (TMRC)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117262441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Implementation of a Binary Neural Network on a Passive Array of Magnetic Tunnel Junctions 二值神经网络在无源磁隧道结阵列上的实现
2022 IEEE 33rd Magnetic Recording Conference (TMRC) Pub Date : 2021-12-16 DOI: 10.1109/TMRC56419.2022.9918590
Jonathan M. Goodwill, N. Prasad, B. Hoskins, M. Daniels, A. Madhavan, L. Wan, T. Santos, M. Tran, J. Katine, P. Braganca, M. Stiles, J. McClelland
{"title":"Implementation of a Binary Neural Network on a Passive Array of Magnetic Tunnel Junctions","authors":"Jonathan M. Goodwill, N. Prasad, B. Hoskins, M. Daniels, A. Madhavan, L. Wan, T. Santos, M. Tran, J. Katine, P. Braganca, M. Stiles, J. McClelland","doi":"10.1109/TMRC56419.2022.9918590","DOIUrl":"https://doi.org/10.1109/TMRC56419.2022.9918590","url":null,"abstract":"Magnetic tunnel junctions (MTJs) provide an attractive platform for implementing neural networks because of their simplicity, non-volatility, and scalability. However, in hardware realizations, device variations, write errors, and parasitic resistance degrade performance. To quantify such effects, we perform inference experiments on a 2-layer perceptron constructed from a 15 x 15 passive array of MTJs, examining classification accuracy and write fidelity. Despite imperfections, we achieve median accuracy of 95.3% with proper tuning of network parameters. The success of this tuning process shows that new metrics are needed to characterize and optimize networks reproduced in mixed signal hardware.","PeriodicalId":432413,"journal":{"name":"2022 IEEE 33rd Magnetic Recording Conference (TMRC)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133299248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
首页 上一页
0
×
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
请完成安全验证×
相关产品
×
本文献相关产品
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 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信