| Nanomagnets with high shape anisotropy and strong crystalline anisotropy: perspectives on magnetic force microscopy. | |
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MedLine Citation:
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PMID: 22107927 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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We report on a new approach for magnetic imaging, highly sensitive even in the presence of external, strong magnetic fields. Based on FIB-assisted fabricated high-aspect-ratio rare-earth nanomagnets, we produce groundbreaking magnetic force tips with hard magnetic character where we combine a high aspect ratio (shape anisotropy) together with strong crystalline anisotropy (rare-earth-based alloys). Rare-earth hard nanomagnets are then FIB-integrated to silicon microcantilevers as highly sharpened tips for high-field magnetic imaging applications. Force resolution and domain reversing and recovery capabilities are at least one order of magnitude better than for conventional magnetic tips. This work opens new, pioneering research fields on the surface magnetization process of nanostructures based either on relatively hard magnetic materials-used in magnetic storage media-or on materials like superparamagnetic particles, ferro/antiferromagnetic structures or paramagnetic materials. |
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Authors:
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H Campanella; M Jaafar; J Llobet; J Esteve; M Vázquez; A Asenjo; R P Del Real; J A Plaza |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-11-23 |
Journal Detail:
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Title: Nanotechnology Volume: 22 ISSN: 1361-6528 ISO Abbreviation: - Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-11-23 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101241272 Medline TA: Nanotechnology Country: - |
Other Details:
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Languages: ENG Pagination: 505301 Citation Subset: - |
Affiliation:
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Instituto de Microelectrónica de Barcelona IMB-CNM (CSIC), Campus UAB, E-08193 Bellaterra (Barcelona), Spain. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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