Email this article Effect of samarium impurity on the relaxation of the magnetization of a (NdDy)(FeCo)B alloy
- Authors: Dmitriev A.I.1, Kucheryaev V.V.2, Kunitsyna E.I.1, Valeev R.A.2, Morgunov R.B.1,2, Piskorskii V.P.2, Ospennikova O.G.2, Kablov E.N.2
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Affiliations:
- Institute of Problems of Chemical Physics
- All-Russia Scientific Research Institute of Aviation Materials VIAM
- Issue: Vol 58, No 8 (2016)
- Pages: 1582-1586
- Section: Magnetism
- URL: https://ogarev-online.ru/1063-7834/article/view/198384
- DOI: https://doi.org/10.1134/S1063783416080102
- ID: 198384
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Abstract
Small Sm additions (~1–3 at %) have been found to slow down the relaxation of the magnetization in a magnetic field in the (NdDy)(FeCo)B alloy by several times. The effective “freezing” of the spontaneous relaxation of the magnetic moment is related to the substantial increase in the potential barriers for motion of domain walls when introducing Sm ions that have other symmetry of the single-ion anisotropy than that of Nd and Dy ions. The results can be used to stabilize the properties of hard magnets.
About the authors
A. I. Dmitriev
Institute of Problems of Chemical Physics
Email: morgunov2005@yandex.ru
Russian Federation, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432
V. V. Kucheryaev
All-Russia Scientific Research Institute of Aviation Materials VIAM
Email: morgunov2005@yandex.ru
Russian Federation, ul. Radio 17, Moscow, 105005
E. I. Kunitsyna
Institute of Problems of Chemical Physics
Email: morgunov2005@yandex.ru
Russian Federation, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432
R. A. Valeev
All-Russia Scientific Research Institute of Aviation Materials VIAM
Email: morgunov2005@yandex.ru
Russian Federation, ul. Radio 17, Moscow, 105005
R. B. Morgunov
Institute of Problems of Chemical Physics; All-Russia Scientific Research Institute of Aviation Materials VIAM
Author for correspondence.
Email: morgunov2005@yandex.ru
Russian Federation, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432; ul. Radio 17, Moscow, 105005
V. P. Piskorskii
All-Russia Scientific Research Institute of Aviation Materials VIAM
Email: morgunov2005@yandex.ru
Russian Federation, ul. Radio 17, Moscow, 105005
O. G. Ospennikova
All-Russia Scientific Research Institute of Aviation Materials VIAM
Email: morgunov2005@yandex.ru
Russian Federation, ul. Radio 17, Moscow, 105005
E. N. Kablov
All-Russia Scientific Research Institute of Aviation Materials VIAM
Email: morgunov2005@yandex.ru
Russian Federation, ul. Radio 17, Moscow, 105005
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