Temperature-dependent magnetization reversal in exchange bias NiFe/IrMn/NiFe structures

Ch Gritsenko, I. Dzhun, M. Volochaev, M. Gorshenkov, G. Babaytsev, N. Chechenin, A. Sokolov, Oleg A. Tretiakov, V. Rodionova

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

We demonstrate magnetization reversal features in NiFe/IrMn/NiFe thin-film structures with 40% and 75% relative content of Ni in Permalloy in the temperature range from 80 K to 300 K. The magnetization reversal sequence of the two ferromagnetic layers is found to depend on the type of NiFe alloy. In the samples with 75% relative content of Ni, the bottom ferromagnetic layer reverses prior to the top one. On the contrary, in the samples with 40% of Ni, the top ferromagnetic layer reverses prior to the bottom one. These tendencies of magnetization reversal are preserved in the entire range of temperatures. These distinctions can be explained by the morphological and structural differences of interfaces in the samples based on two types of Permalloy.

Original languageEnglish
Pages (from-to)370-375
Number of pages6
JournalJournal of Magnetism and Magnetic Materials
Volume482
DOIs
Publication statusPublished - 2019 Jul 15

Keywords

  • Exchange bias
  • Magnetization reversal
  • Permalloy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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