https://scholars.lib.ntu.edu.tw/handle/123456789/349038
標題: | Nanoscale magnetic configurations of supported Fe nanoparticle assemblies studied by scanning electron microscopy with spin analysis | 作者: | Lin, Wen-Chin Gai, Zheng Gao, Lan Shen, Jian Hsu, Pin-Jui Yen, Hong-Yu MINN-TSONG LIN |
公開日期: | 2009 | 卷: | 80 | 期: | 2 | 來源出版物: | Physical Review B | 摘要: | Microscopic magnetic behavior of supported nanoparticles is strongly correlated with their functionalities, especially in data storage and biological applications, but still needs to be clarified. We studied nanoscale magnetic configurations of Fe nanoparticle assemblies using scanning electron microscopy with polarization analysis. The flux closure domain configurations and the reduced magnetic correlation length (∼250nm), relative to the conventional thin films, are determined. Quantitative analysis indicates the magnetic interaction energy to be 80-99 meV, close to the magnetic dipolar coupling energy. These direct observations evidence the aforereported simulations and will be valuable for fabricating magnetic nanoparticle assemblies with the desired magnetic properties. © 2009 The American Physical Society. |
URI: | http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000268617500058&KeyUID=WOS:000268617500058 http://scholars.lib.ntu.edu.tw/handle/123456789/349038 https://www.scopus.com/inward/record.uri?eid=2-s2.0-68949121214&doi=10.1103%2fPhysRevB.80.024407&partnerID=40&md5=efa4e2b9f9b1c57f18865b42a558ddfa |
ISSN: | 10980121 | DOI: | 10.1103/PhysRevB.80.024407 |
顯示於: | 物理學系 |
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