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Detection of a micron-sized magnetic sphere using a ring-shaped anisotropic magnetoresistance-based sensor: A model for a magnetoresistance-based biosensor
Abstract
We have fabricated micron-sized NiFe ring-shaped sensors that show localized detection of the radial component of the dipolar fringing field from a single, partially magnetized, micron-sized NiFe sphere. Specifically, the anisotropic magnetoresistance response to this fringing field is strongly peaked when the sphere is directly above the center of the ring and rapidly decreases to zero when the sphere is outside the ring. Such a device is a model system for a proposed biosensor array architecture that could operate similarly to high-density random access computer memory.
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Cited by
Laurent, S., Forge, D., Port, M., Roch, A., Robic, C., Vander Elst, L., & Muller, R. N. (2008) · Chemical Reviews · doi:10.1021/cr068445e · Cited by 6,852
Mahdavi, M., Namvar, F., Ahmad, M., & Mohamad, R. (2013) · Molecules · doi:10.3390/molecules18055954 · Cited by 666
Magnetoresistive Sensor Development Roadmap (Non-Recording Applications)
Zheng, C., Zhu, K., Cardoso de Freitas, S., Chang, J.-Y., Davies, J. E., Eames, P., Freitas, P. P., Kazakova, O., Kim, C., Leung, C.-W., et al. (2019) · IEEE Transactions on Magnetics · doi:10.1109/tmag.2019.2896036 · Cited by 268
Fawcett, D., Verduin, J. J., Shah, M., Sharma, S. B., & Poinern, G. E. J. (2017) · Journal of Nanoscience · doi:10.1155/2017/8013850 · Cited by 264
Metadata
- Authors
- Miller, M. M., Prinz, G. A., Cheng, S.-F., & Bounnak, S.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2002-09-16
- Volume
- 81
- Issue
- 12
- Pages
- 2211-2213
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W1988204764
- Cited by
- 374
- References
- 0
- FWCI
- 11.57
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Detection of a micron-sized magnetic sphere using a ring-shaped anisotropic magnetoresistance-based sensor: A model for a magnetoresistance-based biosensor. https://app.cochat.ai/papers/10.1063/1.1507832
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- Miller, M. M., Prinz, G. A., Cheng, S.-F., & Bounnak, S. (2002). Detection of a micron-sized magnetic sphere using a ring-shaped anisotropic magnetoresistance-based sensor: A model for a magnetoresistance-based biosensor. Applied Physics Letters. https://doi.org/10.1063/1.1507832
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
