This article is cited in 2 papers

Magnetism

Dependence of the coercive force on the magnetic field sweep rate in (PrDy)(FeCo)B alloys

E. I. Kunitsyna^a, O. V. Koplak^a, V. V. Kucheryaev^b, D. V. Korolev^b, V. P. Piskorsky^b, A. Bezverkhnii^c, R. B. Morgunov<sup>acb

a</sup> Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region
^b All-Russian Scientific Research Institute of Aviation Materials, Moscow
^c Tambov State Technical University

Abstract: The dependence between the coercive force and the average hysteresis loop record time was revealed in sintered (Pr$_{1-x}$Dy$_{x}$)$_{13}$(Fe$_{1-y}$Co$_{y}$)$_{79}$B$_{8}$ magnets. The coercive force was established to grow by 22% with an increase in the average hysteresis loop sweep rate within a range of 1.1 $\times$ 10$^{2}$–3 $\times$ 10$^{5}$ Oe/min, obeying a logarithmic dependence on the loop passage velocity with saturation at low rates. Some domain structure transformations produced by a magnetic field in the process of magnetization were established by magnetic force microscopy.

Received: 31.01.2017

DOI: 10.21883/FTT.2017.08.44751.24

 English version: Physics of the Solid State, 2017, 59:8, 1543–1546

Bibliographic databases:

•