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Journal of Experimental and Theoretical Physics

, Volume 89, Issue 5, pp 986–994 | Cite as

Inhomogeneous ferromagnetic resonance modes in [Fe/Cr]n superlattices with a high biquadratic exchange constant

  • A. B. Drovosekov
  • O. V. Zhotikova
  • N. M. Kreines
  • D. I. Kholin
  • V. F. Meshcheryakov
  • M. A. Milyaev
  • L. N. Romashev
  • V. V. Ustinov
Electronic Properties

Abstract

In a set of [Fe/Cr]n superlattices, magnetization curves and spectra of ferromagnetic resonance under an in-plane magnetic field have been studied at room temperature. Along with the acoustic branch, several additional branches have been observed in resonance spectra. Resonance spectra have been calculated analytically for a structure with an infinite number of layers and numerically for finite numbers of layers in real samples using a model of biquadratic exchange taking account of the fourth-order magnetic anisotropy. A possibility of describing both static and resonance properties of the system in terms of this model has been demonstrated.

Keywords

Magnetic Field Anisotropy Elementary Particle Quantum Field Theory Finite Number 
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

© American Institute of Physics 1999

Authors and Affiliations

  • A. B. Drovosekov
    • 1
  • O. V. Zhotikova
    • 1
  • N. M. Kreines
    • 1
  • D. I. Kholin
    • 1
  • V. F. Meshcheryakov
    • 2
  • M. A. Milyaev
    • 3
  • L. N. Romashev
    • 3
  • V. V. Ustinov
    • 3
  1. 1.P. L. Kapitsa Institute for Physical ProblemsRussian Academy of SciencesMoscowRussia
  2. 2.Moscow Institute of Radio Engineering, Electronics, and AutomationMoscowRussia
  3. 3.Institute of Metal PhysicsUral Department of Russian Academy of SciencesEkaterinburgRussia

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