Structural and magnetic properties of the holmium-yttrium superlattice

  • V. V. TarnavichEmail author
  • A. S. Volegov
  • D. Lott
  • S. Mattauch
  • A. A. Vorobiev
  • A. Oleshkevych
  • S. V. Grigoriev


The structural and magnetic properties of the multilayer holmium-yttrium system are investigated by superconducting quantum interference device (SQUID) magnetometry and X-ray and neutron scattering. The sample synthesized by molecular beam epitaxy is the Al2O3/Nb50 Å/Y200 Å/(Ho60 Å/Y30 Å) × 30/Nb50 Å layer sequence. The occurrence of a helical magnetic structure with a period of 24 Å and a spiral coherence length of about 500 Å is observed at a temperature of T N = 123 K upon the identical population of domains with left and right magnetic spirals after zero-field cooling of the sample to a temperature of 10 K. The transition to the ferromagnetic structure at a temperature of 20 K in the investigated sample is suppressed.


Magnetic Structure Surface Investigation Neutron Technique Superconducting Quantum Interference Device Bilayer Thickness 
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© Pleiades Publishing, Ltd. 2014

Authors and Affiliations

  • V. V. Tarnavich
    • 1
    Email author
  • A. S. Volegov
    • 2
  • D. Lott
    • 3
  • S. Mattauch
    • 4
  • A. A. Vorobiev
    • 5
  • A. Oleshkevych
    • 5
  • S. V. Grigoriev
    • 1
    • 6
  1. 1.Petersburg Nuclear Physics InstituteNational Research Center Kurchatov InstituteGatchina, St. PetersburgRussia
  2. 2.Ural Federal UniversityYekaterinburgRussia
  3. 3.Helmholtz Zentrum GeesthachtGeesthachtGermany
  4. 4.Jülich Center for Neutron ScienceGarchingGermany
  5. 5.Uppsala UniversityUppsalaSweden
  6. 6.St. Petersburg State UniversitySt. PetersburgRussia

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