Temperature effects in exchange-biased planar hall sensors for bioapplications

被引：15
作者：
Damsgaard, C. D. [1 ]
Dalslet, B. T. [1 ]
Freitas, S. C. [2 ,3 ]
Freitas, P. P. [2 ,3 ]
Hansen, M. F. [1 ]
机构：
[1] Tech Univ Denmark, Dept Micro & Nanotechnol, DTU Nanotech, DK-2800 Lyngby, Denmark
[2] INESC Microsyst & Nanotechnol, P-1000029 Lisbon, Portugal
[3] Inst Super Tecn, Dept Phys, P-1000 Lisbon, Portugal
来源：
SENSORS AND ACTUATORS A-PHYSICAL | 2009年 / 156卷 / 01期
关键词：
Magnetic biosensors; Planar Hall effect; Anisotropic magnetoresistance; Exchange bias; MAGNETIC MICROBEAD;
D O I：
10.1016/j.sna.2009.03.024
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The temperature dependence of exchange biased planar Hall effect sensors is investigated between T = -10 and 70 degrees C. it is shown that a single domain model describes the system well and that the temperature coefficient of the low-field sensitivity at T = 25 degrees C is 0.32%/degrees C. A procedure for temperature correction by use of a reference sensor is demonstrated. Consequences for magnetic biosensing are exemplified with calculations on M-280 Dynabeads (R). (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：103 / 108
页数：6
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    Chui, K. M.
    Adeyeye, A. O.
    Li, Mo-Huang
    [J]. SENSORS AND ACTUATORS A-PHYSICAL, 2008, 141 (02) : 282 - 287
  • [2] Exchange-biased planar Hall effect sensor optimized for biosensor applications
    Damsgaard, Christian D.
    Freitas, Susana C.
    Freitas, Paulo P.
    Hansen, Mikkel F.
    [J]. JOURNAL OF APPLIED PHYSICS, 2008, 103 (07)
  • [3] Theoretical study of in-plane response of magnetic field sensor to magnetic beads in an in-plane homogeneous field
    Damsgaard, Christian Danvad
    Hansen, Mikkel Fougt
    [J]. JOURNAL OF APPLIED PHYSICS, 2008, 103 (06)
  • [4] Magnetic microbead detection using the planar Hall effect
    Ejsing, L
    Hansen, MF
    Menon, AK
    Ferreira, HA
    Graham, DL
    Freitas, PP
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2005, 293 (01) : 677 - 684
  • [5] Planar Hall effect sensor for magnetic micro- and nanobead detection
    Ejsing, L
    Hansen, MF
    Menon, AK
    Ferreira, HA
    Graham, DL
    Freitas, PP
    [J]. APPLIED PHYSICS LETTERS, 2004, 84 (23) : 4729 - 4731
  • [6] Ion beam deposition of Mn-Ir spin valves
    Gehanno, V
    Freitas, PP
    Veloso, A
    Ferreira, J
    Almeida, B
    Sousa, JB
    Kling, A
    Soares, JC
    da Silva, MF
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1999, 35 (05) : 4361 - 4367
  • [7] Magnetic biochips: a new option for sensitive diagnostics
    Megens, M
    Prins, M
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2005, 293 (01) : 702 - 708
  • [8] LOW-FIELD MAGNETIC SENSORS BASED ON THE PLANAR HALL-EFFECT
    SCHUHL, A
    VANDAU, FN
    CHILDRESS, JR
    [J]. APPLIED PHYSICS LETTERS, 1995, 66 (20) : 2751 - 2753
  • [9] Thickness dependence of parallel and perpendicular anisotropic resistivity in Ta/NiFe/IrMn/Ta multilayer studied by anisotropic magnetoresistance and planar Hall effect
    Thanh, N. T.
    Tu, L. T.
    Ha, N. D.
    Kim, C. O.
    Kim, CheolGi
    Shin, K. H.
    Rao, B. Parvatheeswara
    [J]. JOURNAL OF APPLIED PHYSICS, 2007, 101 (05)
  • [10] Magnetic sensors for nanotesla detection using planar Hall effect
    VanDau, FN
    Schuhl, A
    Childress, JR
    Sussiau, M
    [J]. SENSORS AND ACTUATORS A-PHYSICAL, 1996, 53 (1-3) : 256 - 260
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