烧结永磁体中产生的窄晶界磁通密度测量

IF 1.8 4区工程技术

Microscopy Pub Date : 2020-11-01 DOI:10.1093/jmicro/dfaa032

Youngji Cho;Sujin Lee;Yasukazu Murakami

{"title":"烧结永磁体中产生的窄晶界磁通密度测量","authors":"Youngji Cho;Sujin Lee;Yasukazu Murakami","doi":"10.1093/jmicro/dfaa032","DOIUrl":null,"url":null,"abstract":"This review examines methods of magnetic flux density measurements from the narrow grain boundary (GB) regions, the thickness of which is of the order of nanometers, produced in Nd–Fe–B-based sintered magnets. Despite of the complex crystallographic microstructure and the significant stray magnetic field of the sintered magnet, recent progress in electron holography allowed for the determination of the intrinsic magnetic flux density due to the GB which is embedded in the polycrystalline thin-foil. The methods appear to be useful as well for intensive studies about interface magnetism in a variety of systems.","PeriodicalId":18515,"journal":{"name":"Microscopy","volume":"70 1","pages":"17-23"},"PeriodicalIF":1.8000,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1093/jmicro/dfaa032","citationCount":"1","resultStr":"{\"title\":\"Magnetic flux density measurements from narrow grain boundaries produced in sintered permanent magnets\",\"authors\":\"Youngji Cho;Sujin Lee;Yasukazu Murakami\",\"doi\":\"10.1093/jmicro/dfaa032\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This review examines methods of magnetic flux density measurements from the narrow grain boundary (GB) regions, the thickness of which is of the order of nanometers, produced in Nd–Fe–B-based sintered magnets. Despite of the complex crystallographic microstructure and the significant stray magnetic field of the sintered magnet, recent progress in electron holography allowed for the determination of the intrinsic magnetic flux density due to the GB which is embedded in the polycrystalline thin-foil. The methods appear to be useful as well for intensive studies about interface magnetism in a variety of systems.\",\"PeriodicalId\":18515,\"journal\":{\"name\":\"Microscopy\",\"volume\":\"70 1\",\"pages\":\"17-23\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2020-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1093/jmicro/dfaa032\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Microscopy\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/9433128/\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microscopy","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/9433128/","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 1

摘要

这篇综述研究了在Nd–Fe–B基烧结磁体中产生的厚度为纳米量级的窄晶界（GB）区域的磁通密度测量方法。尽管烧结磁体具有复杂的晶体微观结构和显著的杂散磁场，但由于嵌入多晶薄箔中的GB，电子全息术的最新进展允许测定本征磁通密度。这些方法似乎对深入研究各种系统中的界面磁性也很有用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Magnetic flux density measurements from narrow grain boundaries produced in sintered permanent magnets

This review examines methods of magnetic flux density measurements from the narrow grain boundary (GB) regions, the thickness of which is of the order of nanometers, produced in Nd–Fe–B-based sintered magnets. Despite of the complex crystallographic microstructure and the significant stray magnetic field of the sintered magnet, recent progress in electron holography allowed for the determination of the intrinsic magnetic flux density due to the GB which is embedded in the polycrystalline thin-foil. The methods appear to be useful as well for intensive studies about interface magnetism in a variety of systems.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Microscopy 工程技术-显微镜技术

自引率

11.10%

发文量

审稿时长

>12 weeks

期刊介绍： Microscopy, previously Journal of Electron Microscopy, promotes research combined with any type of microscopy techniques, applied in life and material sciences. Microscopy is the official journal of the Japanese Society of Microscopy.