Selected Material Aspects of GMR-Sensors used in Hard Disk Drives

  1. Dr. K. Grassie2,
  2. Prof. Dr. E. Teuckhoff3,
  3. Prof. Dr. G. Wegner4,
  4. Prof. Dr. J. Hausselt5 and
  5. Prof. Dr. H. Hanselka6
  1. Jan Marien,
  2. C. Schug,
  3. C. Waldenmaier and
  4. H.-R. Blank

Published Online: 27 APR 2006

DOI: 10.1002/3527607420.ch3

Functional Materials, Volume 13

Functional Materials, Volume 13

How to Cite

Marien, J., Schug, C., Waldenmaier, C. and Blank, H.-R. (2000) Selected Material Aspects of GMR-Sensors used in Hard Disk Drives, in Functional Materials, Volume 13 (eds K. Grassie, E. Teuckhoff, G. Wegner, J. Hausselt and H. Hanselka), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527607420.ch3

Editor Information

  1. 2

    Philips Forschungslaboratorium, Postfach 500145, 52085 Aachen, Germany

  2. 3

    Siemens AG, Postfach 3240, 91050 Erlangen, Germany

  3. 4

    Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany

  4. 5

    Forschungszentrum Karlsruhe, Postfach 3640, 76201 Karlsruhe, Germany

  5. 6

    Institut für Mechanik, Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, 39160 Magdeburg, Germany

Author Information

  1. IBM Deutschland Speichersysteme GmbH, Mainz, Germany

Publication History

  1. Published Online: 27 APR 2006
  2. Published Print: 27 JUN 2000

Book Series:

  1. EUROMAT 99

ISBN Information

Print ISBN: 9783527302543

Online ISBN: 9783527607426



  • functional materials;
  • GMR-sensors used in hard disk drives;
  • antiferromagnet


This paper is structured as follows. Section 2 will discuss design issues of the antiferromagnetic pinning and describe the potential antiferromagnetic materials. A special configuration of exchange coupled ferromagnetic layers can be used as an artificial antiferromagnet and help to form a more stable pinned layer. The application of X-Ray reflectometry (XRR) to measure the layer thicknesses is explained in Section 3. In Section 4 the longitudinal magnetic stabilization with a hard bias film is discussed and TEM images are shown to illustrate the complex geometric design of a real device.