jap banner
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter UniPHY Group iResearch App Facebook

Journal of Applied Physics / Volume 99 / Issue 8 / PROCEEDINGS OF THE 50TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS / Magnetoelectronic Devices

J. Appl. Phys. 99, 08H703 (2006); http://dx.doi.org/10.1063/1.2162507 (3 pages)

Exchange coupling between ferromagnetic and antiferromagnetic layers via Ru and application for a linear magnetic field sensor

Dexin Wang, Jim Daughton, Cathy Nordman, Pete Eames, and Jon Fink

NVE Corporation, 11409 Valley View Road, Eden Prairie, Minnesota 55344

View MapView Map

(Published online 19 April 2006)

Exchange coupling is observed in a trilayer structure of ferromagnet-Ru-antiferromagnet and the coupling strength is found to be a function of the thickness of the Ru spacer layer. This is the first observation for such a trilayer structure and may help to shed light on the illusive mechanism of exchange coupling in these systems. This unique coupling is used to bias the sense layer in a magnetic tunnel junction structure so that the magnetization orientations of the sense layer and the pinned layer can be independently controlled. Sensor devices are fabricated with a bipolar output, a medium sensitivity, and a wide field range. The results show that this biasing scheme is well suited for magnetic tunnel junctions used in magnetic field sensors.

© 2006 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENT
  3. RESULTS AND DISCUSSION

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

ferromagnetic materials, antiferromagnetic materials, magnetic field measurement, magnetic sensors, ruthenium, exchange interactions (electron), magnetic multilayers, magnetic tunnelling

PACS

  • 75.30.Et

    Exchange and superexchange interactions

  • 75.50.Ee

    Antiferromagnetics

  • 06.30.Ka

    Basic electromagnetic quantities

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.2162507

PUBLICATION DATA

ISSN

0021-8979 (print)  
1089-7550 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    H. S. Jung, O. Traistaru, and H. Fujiwara, J. Appl. Phys. 95, 6849 (2004)JAPIAU000095000011006849000001.

    S. S. P. Parkin, N. More, and K. P. Roche, Phys. Rev. Lett. 64, 2304 (1990).

    S. J. Joo, D. H. Hong, and T. D. Lee, J. Appl. Phys. 95, 7522 (2004)JAPIAU000095000011007522000001.

    K. Yagami, M. Tsunoda, and M. Takahashi, J. Appl. Phys. 89, 6606 (2001)JAPIAU000089000011006606000001.

    M. Lohndorf, T. Duenas, M. Tewes, E. Quandt, M. Ruhrig, and J. Wecker, Appl. Phys. Lett. 81, 313 (2002)APPLAB000081000002000313000001.


For access to citing articles, you need to log in.


Figures (6)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)



Close

Google Calendar

ADVERTISEMENT

Your Recent History Recent History Help

Recently Viewed

  1. Exchange coupling between ferromagnetic and antiferromagnetic layers via Ru and application for a linear magnetic field sensor
  2. Finite-temperature anisotropy of magnetic alloys
  3. Response of oscillation-controlled magnetic sensing
  4. Delta-sigma digital magnetometer utilizing bistable spin-dependent-tunneling magnetic sensors
  5. Progress toward a thousandfold reduction in 1/f noise in magnetic sensors using an ac microelectromechanical system flux concentrator (invited)
Go to AIP Home
Copyright © American Institute of Physics
close