Effect of samarium impurity on the relaxation of the magnetization of a (NdDy)(FeCo)B alloy


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Аннотация

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.

Авторлар туралы

A. Dmitriev

Institute of Problems of Chemical Physics

Email: morgunov2005@yandex.ru
Ресей, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432

V. Kucheryaev

All-Russia Scientific Research Institute of Aviation Materials VIAM

Email: morgunov2005@yandex.ru
Ресей, ul. Radio 17, Moscow, 105005

E. Kunitsyna

Institute of Problems of Chemical Physics

Email: morgunov2005@yandex.ru
Ресей, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432

R. Valeev

All-Russia Scientific Research Institute of Aviation Materials VIAM

Email: morgunov2005@yandex.ru
Ресей, ul. Radio 17, Moscow, 105005

R. Morgunov

Institute of Problems of Chemical Physics; All-Russia Scientific Research Institute of Aviation Materials VIAM

Хат алмасуға жауапты Автор.
Email: morgunov2005@yandex.ru
Ресей, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432; ul. Radio 17, Moscow, 105005

V. Piskorskii

All-Russia Scientific Research Institute of Aviation Materials VIAM

Email: morgunov2005@yandex.ru
Ресей, ul. Radio 17, Moscow, 105005

O. Ospennikova

All-Russia Scientific Research Institute of Aviation Materials VIAM

Email: morgunov2005@yandex.ru
Ресей, ul. Radio 17, Moscow, 105005

E. Kablov

All-Russia Scientific Research Institute of Aviation Materials VIAM

Email: morgunov2005@yandex.ru
Ресей, ul. Radio 17, Moscow, 105005

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