Title :
Using a planar hall effect sensor for single bead detection
Author :
Volmer, M. ; Avram, M. ; Avram, A.M.
Author_Institution :
Phys. Dept., Transilvania Univ., Brasov, Romania
Abstract :
We performed micromagnetic simulations regarding the detection of magnetic microbeads using a planar Hall effect sensor. The interactions between the magnetic particles and the sensor have been considered in order to simulate the behaviour of these systems. Our results show a high dependence of the sensor response on magnetic beads position. In order to have a linear response, a setup for magnetic biasing the sensor is proposed.
Keywords :
Hall effect devices; magnetic field measurement; magnetic variables measurement; magnetic biasing; magnetic microbead detection; magnetic particle; micromagnetic simulation; planar Hall effect sensor; sensor response; single bead detection; Magnetic domains; Magnetic fields; Magnetic tunneling; Micromagnetics; Perpendicular magnetic anisotropy; Saturation magnetization; Biomedical application; Lab-on-chip; Magnetic nanoparticles; Micromagnetic simulations; Planar Hall effect sensors;
Conference_Titel :
Semiconductor Conference (CAS), 2010 International
Conference_Location :
Sinaia
Print_ISBN :
978-1-4244-5783-0
DOI :
10.1109/SMICND.2010.5650494
