Please use this identifier to cite or link to this item:
|Title:||Detection of a single magnetic dot using a Planar Hall sensor|
Planar Hall effect
Single micro-bead detection
|Citation:||Chui, K.M., Adeyeye, A.O., Li, M.-H. (2007-03). Detection of a single magnetic dot using a Planar Hall sensor. Journal of Magnetism and Magnetic Materials 310 (2 SUPPL. PART 3) : e992-e993. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jmmm.2006.10.1034|
|Abstract:||We have successfully demonstrated the detection of pseudo-magnetic beads placed on top of 4×4 μm2 and 5×5 μm2 Planar Hall trilayer (Si/Co10 nm /Cu2 nm /NiFe10 nm) sensors. The sensor and the pseudo-magnetic beads were fabricated using a combination of e-beam and optical lithography techniques. Magneto-transport measurements detect the presence of dots placed on top of the PHE junction, even to the limit of single-dot. We observed that the PHE response is very sensitive to changes in the density of coverage of the sensing area with pseudo-magnetic beads. We attribute this effect to the direct coupling between the dots and the sensing layer below. © 2006 Elsevier B.V. All rights reserved.|
|Source Title:||Journal of Magnetism and Magnetic Materials|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jul 13, 2018
WEB OF SCIENCETM
checked on Jun 11, 2018
checked on Mar 12, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.