Planar Hall Effect Ring Sensors for High Field-Sensitivity

Article Preview

Abstract:

Planar Hall effect sensor has been explored using multi-layer cross-shaped and bridge geometry. We present planar Hall effect in a ring-shaped geometry experimentally that shows progress of sensor sensitivity as well as output signals. Sensitivity improves about 170 times compare to cross-shaped geometry and about 1.4 times to bridge geometry in conventional measurement system. These values become 2.5 times larger at 20o measurement system. The presented ring geometry may take great potential in Planar Hall effect sensor applications.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 317-319)

Pages:

1136-1140

Citation:

Online since:

August 2011

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] F.N. V. Dau, A. Schuhl, T.R. Childress and M. Sussiau, Sens. Actuators A 53 (1996) 256.

Google Scholar

[2] F. Montaigne, A. Schuhl, F.N. V. Dau and A. Enciaas, Sens. Actuators A 81 (2000) 324.

Google Scholar

[3] Y. Bason, L. Klein, J.B. Yau, X. Hong, J. Hoffman and C.H. Ahn, J. Appl. Phys. 99 (2006) 08R701.

Google Scholar

[4] L. Ejsing, M.F. Hansen, A.K. Menon, H.A. Ferreira, D.L. Graham and P.P. Freitas, Appl. Phys. Lett. 84 (2004) 4729.

Google Scholar

[5] C.D. Damsgaard, B.T. Dalslet, S.C. Freitas, P.P. Freitas and M.F. Hansen, Sens. Actuators A 156 (2009) 103.

Google Scholar

[6] T.Q. Hung, S. Oh, J.-R. Jeong and C. Kim, Sens. Actuators A 157 (2010) 42.

Google Scholar

[7] P.P. Freitas, H.A. Ferreira, D.L. Graham, L.A. Clarke, M.D. Amaral, V. Martins, L. Fonseca, J.S. Cabral, in: Magnetoelectronics, edited by M. Johnson, Elsevier, Amsterdam, 2004.

DOI: 10.1016/b978-012088487-2/50008-x

Google Scholar

[8] T.Q. Hung, S. Oh, B. Sinha, J.-R. Jeong, D.-Y. Kim and C.G. Kim, J. Appl. Phys. 107 (2010) 09E715.

Google Scholar

[9] A.D. Henriksen, B.T. Dalslet, D.H. Skieller, K.H. Lee, F. Okkels and M.F. Hansen, Appl. Phys. Lett. 97 (2010) 013507.

DOI: 10.1063/1.3460290

Google Scholar

[10] M. Donolato, B.T. Dalslet, C.D. Damsgaard, K. Gunnersson, C.S. Jacobsen, P. Svedlindh and M.F. Hansen, J. Appl. Phys. 109 (2011) 064511.

DOI: 10.1063/1.3561364

Google Scholar

[11] C.D. Damsgaard, B.T. Dalslet, S.C. Freitas and M.F. Hansen, J. Appl. Phys. 103 (2008) 07A302.

Google Scholar