Planar Hall bead array counter microchip with NiFe/IrMn bilayers

Bui Dinh Tu; Tran Quang Hung; Nguyen Trung Thanh; Tran Mau Danh; Nguyen Huu Duc; Cheol Gi Kim

doi:10.1063/1.2988297

Planar Hall bead array counter microchip with NiFe/IrMn bilayers

Bui Dinh Tu, Tran Quang Hung, Nguyen Trung Thanh, Tran Mau Danh, Nguyen Huu Duc, Cheol Gi Kim

Department of Physics and Chemistry

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The planar Hall effect (PHE) magnetic bead array countermicrochip integrating 24 of single sensors based on a simple NiFe/IrMn bilayer structure with a patterned size of 3×3 μ m2 has been fabricated and characterized. Single PHE sensors exhibit a sensitivity of about 2.5 m/Oe. It was well applied for single Dynabeads^® M-280 detection, where one bead can induce a signal change, ΔV∼2.2 mV, under the applied magnetic field of 20 Oe and a sensing current of 2 mA. This type of microchip is promising for quickly detecting and identifying multiple biological agents in the environment.

Original language	English
Article number	074701
Journal	Journal of Applied Physics
Volume	104
Issue number	7
DOIs	https://doi.org/10.1063/1.2988297
State	Published - 2008

Bibliographical note

Funding Information:
This work was supported by the State Program for Fundamental Research in Natural Science of Vietnam under Project No. 410.406, by the Vietnam National University of Hanoi under Project No. QG.TD 07.10, and by the MIC under Project No. A1100-0601-0033.

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title = "Planar Hall bead array counter microchip with NiFe/IrMn bilayers",

abstract = "The planar Hall effect (PHE) magnetic bead array countermicrochip integrating 24 of single sensors based on a simple NiFe/IrMn bilayer structure with a patterned size of 3×3 μ m2 has been fabricated and characterized. Single PHE sensors exhibit a sensitivity of about 2.5 m/Oe. It was well applied for single Dynabeads{\textregistered} M-280 detection, where one bead can induce a signal change, ΔV∼2.2 mV, under the applied magnetic field of 20 Oe and a sensing current of 2 mA. This type of microchip is promising for quickly detecting and identifying multiple biological agents in the environment.",

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note = "Funding Information: This work was supported by the State Program for Fundamental Research in Natural Science of Vietnam under Project No. 410.406, by the Vietnam National University of Hanoi under Project No. QG.TD 07.10, and by the MIC under Project No. A1100-0601-0033.",

year = "2008",

doi = "10.1063/1.2988297",

language = "English",

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T1 - Planar Hall bead array counter microchip with NiFe/IrMn bilayers

AU - Tu, Bui Dinh

AU - Hung, Tran Quang

AU - Thanh, Nguyen Trung

AU - Danh, Tran Mau

AU - Duc, Nguyen Huu

AU - Kim, Cheol Gi

N1 - Funding Information: This work was supported by the State Program for Fundamental Research in Natural Science of Vietnam under Project No. 410.406, by the Vietnam National University of Hanoi under Project No. QG.TD 07.10, and by the MIC under Project No. A1100-0601-0033.

PY - 2008

Y1 - 2008

N2 - The planar Hall effect (PHE) magnetic bead array countermicrochip integrating 24 of single sensors based on a simple NiFe/IrMn bilayer structure with a patterned size of 3×3 μ m2 has been fabricated and characterized. Single PHE sensors exhibit a sensitivity of about 2.5 m/Oe. It was well applied for single Dynabeads® M-280 detection, where one bead can induce a signal change, ΔV∼2.2 mV, under the applied magnetic field of 20 Oe and a sensing current of 2 mA. This type of microchip is promising for quickly detecting and identifying multiple biological agents in the environment.

AB - The planar Hall effect (PHE) magnetic bead array countermicrochip integrating 24 of single sensors based on a simple NiFe/IrMn bilayer structure with a patterned size of 3×3 μ m2 has been fabricated and characterized. Single PHE sensors exhibit a sensitivity of about 2.5 m/Oe. It was well applied for single Dynabeads® M-280 detection, where one bead can induce a signal change, ΔV∼2.2 mV, under the applied magnetic field of 20 Oe and a sensing current of 2 mA. This type of microchip is promising for quickly detecting and identifying multiple biological agents in the environment.

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JO - Journal of Applied Physics

JF - Journal of Applied Physics

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Planar Hall bead array counter microchip with NiFe/IrMn bilayers

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