Zhong, Hai, Tarrach, Guido, Wu, Peiwen et al. (3 more authors) (2008) High resolution magnetic force microscopy of patterned L1(0)-FePt dot arrays by nanosphere lithography. Nanotechnology. 095703. ISSN 0957-4484
Abstract
High resolution magnetic force microscopy (MFM) has been carried out on L1(0)-FePt dot arrays patterned by plasma modified nanosphere lithography. An ex situ tip magnetization reversal experiment is carried out to determine the magnetic domains and verify the imaging stability of MFM and the mutual perturbations between the magnetic tip and the sample. We have identified that the critical size for the single domain region is about 90 nm across. Comparison with MFM image simulation also suggests that the magnetizations of the triangular dots in both single and double domain states are parallel to one edge of the dots, indicating the large uniaxial magnetocrystalline anisotropy of the L1(0)-FePt phase and the need for decreasing the magnetostatic energy.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Keywords: | NANOPARTICLES,STORAGE,MEDIA |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 07 Jun 2012 15:15 |
Last Modified: | 21 Jan 2025 17:15 |
Published Version: | https://doi.org/10.1088/0957-4484/19/9/095703 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1088/0957-4484/19/9/095703 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:58401 |