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Planar Hall Effect (PHE) Magnetometers

  • Vladislav Mor
  • Asaf GroszEmail author
  • Lior Klein
Chapter
Part of the Smart Sensors, Measurement and Instrumentation book series (SSMI, volume 19)

Abstract

The planar Hall effect (PHE) is intimately related to the anisotropic magnetoresistance (AMR). However, while AMR-based magnetic sensors have been commercially available for decades and are widely used in a variety of applications, PHE-based sensors have been mostly the subject of research. The reason for that is most probably the superior performance that has been exhibited by the AMR sensors. In this chapter, we review the work that has been done in the field of PHE sensors with emphasis on the PHE sensors developed by the authors. The performance of these sensors exceeds the performance of commercially available AMR-based sensors and has the potential of competing even with bulkier ultra-sensitive sensors such as flux-gate and atomic magnetometers. We review the physical origin of the effect, the use of shape to tailor the magnetic anisotropy on demand and the optimization process of the fabrication details of the sensor and its amplification circuit.

Keywords

Magnetic Anisotropy Easy Axis Current Noise Anisotropy Field Ferromagnetic Layer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2017

Authors and Affiliations

  1. 1.Department of Physics, Nano-Magnetism Research Center, Institute of Nanotechnology and Advanced MaterialsBar-Ilan UniversityRamat-GanIsrael
  2. 2.Department of Electrical and Computer EngineeringBen-Gurion University of the NegevBeer-ShevaIsrael

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