Multiple spin-flip transitions and stairs-like GMR in Fe/Cr superlattices with uniaxial in-plane anisotropy

V. V. Ustinov, M. A. Milayev, L. N. Romashev, T. P. Krinitsina, A. M. Burkhanov, V. V. Lauter-Pasyuk, H. J. Lauter

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9 Scopus citations

Abstract

The [Fe/Cr]N superlattices with the uniaxial in-plane anisotropy and the stairs-like dependences of magnetization and magnetoresistance on a magnetic field were MBE-grown on special (2 1 1)MgO substrates. It is shown that the "steps" on the M(H) and ΔR/R(H) dependences are results of the multiple spin-flip transitions, i.e. 180°-reorientation of magnetic moments of ferromagnetic sublayers in the superlattices. The transitions are found to be very sensitive to small variations of the Cr layers thickness.

Original languageEnglish
Pages (from-to)e281-e283
JournalJournal of Magnetism and Magnetic Materials
Volume300
Issue number1
DOIs
StatePublished - May 2006
Externally publishedYes
EventThird International Symposium on Magnetism 2005 -
Duration: Jun 26 2005Jun 30 2005

Funding

The research was partly supported by RFBR (Grant 04-02-16464), Grant SS - 1380.2003.2, Programs of RAS “Low-dimensional quantum structures” and “Quantum macrophysics”.

Keywords

  • Fe/Cr multilayers
  • Giant magnetoresistance
  • In-plane anisotropy
  • Multiple spin-flip transitions
  • Stairs-like magnetization curve

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