Magnetic microstructure and  magnetoresistive effect in Corbino’s disk with magnetic ordering

  • Victoryia I. Halauchuk Belarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, Belarus
  • Michail G. Lukashevich Belarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, Belarus

Abstract

The atomic- and magnetic-force microscopy results are presented for the transverse magnetoresistive effect in Corbino’s disk with magnetic ordering. The disk was prepared on the setall substrate from permalloy film by means of ion-beam sputtering. It is shown that, independently of the magnetic field-disk plane orientation, magnetoresistance is negative and it reveals a sharp peak for a weak magnetic field in the interval В = 0.2-8.0 mT due to the domain wall motion. A position of the peak, its amplitude and half-width depends significantly on the magnetic field orientation with respect to the disk plane. During the out-of-plane magnetic field measurements changing of a sign of magnetoresistance within the peak and also changes in a slope of magnetoresistance due to the Lorentzian positive magnetoresistance contribution were observed.

Author Biographies

Victoryia I. Halauchuk, Belarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, Belarus

student at the faculty of physics

Michail G. Lukashevich, Belarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, Belarus

doctor of science (physics and mathematics), full professor; professor at the department of semiconductors and nanoelectronic, faculty of physics

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Published
2019-01-20
Keywords: permalloy, substrate, film, roughness, magnetic microstructure, Corbino disk, magnetoresistance
How to Cite
Halauchuk, V. I., & Lukashevich, M. G. (2019). Magnetic microstructure and  magnetoresistive effect in Corbino’s disk with magnetic ordering. Journal of the Belarusian State University. Physics, 3, 46-53. Retrieved from https://journals.bsu.by/index.php/physics/article/view/503
Issue
No 3 (2018): Journal of the Belarusian State University. Physics
Section
Condensed State Physics

Copyright (c) 2018 Journal of the Belarusian State University. Physics

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