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Detection of a countable number of magnetic particles for biological applications using a Hall device
- Authors
- Kim, Y.; Lee, W.; Hong, J.; Hong, S. K.; Kim, K. H.; Kim, S. U.; Rhie, K.; Lee, S.; Chung, Y.; Shin, K.
- Issue Date
- 2월-2008
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- magnetic particle; biosensor; gradiometry
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.52, no.2, pp.513 - 516
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 52
- Number
- 2
- Start Page
- 513
- End Page
- 516
- ISSN
- 0374-4884
- Abstract
- We fabricated a magnetic field sensor made of an InAs quantum-well. Various numbers of magnetic particles were located on the sensor and the stray field generated by the magnetic particles was detected using micro-Hall magnetometry at room temperature. A numerical calculation carried out for this device successfully explained the experimental results and a useful equation relating the signal of the device and the number of particles was deduced.
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Related Researcher
- Rhie, Kung won
- 과학기술대학 (디스플레이·반도체물리학부 반도체물리전공)