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Physics of Metals and Metallography

, Volume 118, Issue 4, pp 341–345 | Cite as

Magnetic behavior of the nanophase of YbNi2 alloys

  • V. A. Ivanshin
  • E. M. Gataullin
  • A. A. Sukhanov
  • N. A. Ivanshin
  • D. P. Rojas
  • L. Fernández Barquín
Electrical and Magnetic Properties

Abstract

Variations in magnetic properties of the heavy-fermion YbNi2 alloy when milled in a high energy ball milling system have been investigated. The ferromagnetic transition (T C = 10.4 K) in the initial sample almost vanishes after milling, which leads to the appearance of a magnetic transition at T* = 3.2 K in nanocrystallites. Before milling, processes of spin–lattice relaxation of the Orbach–Aminov type with the participation of the first excited Stark sublevel of the Yb3+ ion located at 75 K are dominating in the electron spin dynamics in the paramagnetic phase of the alloy. A comparative study of the temperature dependence of the magnetic properties and spectra of electron paramagnetic resonance in poly- and nanocrystalline samples indicates the existence of a magnetic inhomogeneity of the compound arising upon milling.

Keywords

heavy fermions magnetic susceptibility electron paramagnetic resonance nanocrystallites 

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • V. A. Ivanshin
    • 1
  • E. M. Gataullin
    • 1
  • A. A. Sukhanov
    • 2
  • N. A. Ivanshin
    • 3
  • D. P. Rojas
    • 4
  • L. Fernández Barquín
    • 5
  1. 1.Institute of PhysicsKazan Federal (Volga region) UniversityKazanRussia
  2. 2.Zavoiskii Kazan Physicotechnical InstituteKazan Research Center, Russian Academy of SciencesKazanRussia
  3. 3.Kazan State University of Architecture and EngineeringKazanRussia
  4. 4.Departamento de Estructuras y Física de Edificación-ETSAMUniversidad Politécnica de MadridMadridSpain
  5. 5.DCITIMAC, Facultad de CienciasUniversidad de CantabriaSantanderSpain

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