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Technical Physics Letters

, Volume 41, Issue 5, pp 458–461 | Cite as

The effect of the disk magnetic element profile on the saturation field and noise of a magneto-modulation magnetic field sensor

  • P. M. Vetoshko
  • A. K. Zvezdin
  • V. A. Skidanov
  • I. I. Syvorotka
  • I. M. Syvorotka
  • V. I. BelotelovEmail author
Article

Abstract

Using the finite element method, it was shown by simulations that the approximation of a semielliptic thickness profile of magnetic disk by a stepped profile reduces the saturation field. Reducing the saturation field improves the sensitivity of magneto-modulation sensors, which is confirmed by experiments in the measurements of noise using magnetic field sensors that have a core with a stepped profile. The obtained level of magnetic sensor noise with a four-stage-core profile (1.5 × 10−9 Oe/Hz1/2) is more than an order of magnitude lower than in the known modern counterparts.

Keywords

External Magnetic Field Technical Physic Letter Magnetic Sensor Magnetic Disk Saturation Field 
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

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  • P. M. Vetoshko
    • 1
    • 2
  • A. K. Zvezdin
    • 1
    • 3
  • V. A. Skidanov
    • 4
  • I. I. Syvorotka
    • 5
  • I. M. Syvorotka
    • 5
  • V. I. Belotelov
    • 1
    • 3
    • 6
    Email author
  1. 1.Russian Quantum CenterSkolkovo, MoscowRussia
  2. 2.Kotel’nikov Institute of Radio Engineering and ElectronicsRussian Academy of SciencesMoscowRussia
  3. 3.Prokhorov General Physics InstituteRussian Academy of SciencesMoscowRussia
  4. 4.Institute for Design Problems in MicroelectronicsRussian Academy of SciencesZelenogradRussia
  5. 5.Research Center CaratLvivUkraine
  6. 6.Lomonosov Moscow State UniversityMoscowRussia

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