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This article is cited in 1 scientific paper (total in 1 paper)
Magnetism
Low-temperature anomaly of the magnetization in alloys (Pr, Dy, $M$)$_{2}$(Fe, Co)$_{14}$B ($M$ = Gd, Sm, Nd)
E. N. Kablova, O. G. Ospennikovaa, I. I. Rezchikovaa, R. A. Valeeva, I. V. Cherednichenkoa, E. I. Kunitsynab, R. B. Morgunovb, V. P. Piskorskya a All-Russian Scientific Research Institute of Aviation Materials, Moscow
b Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region
Abstract:
It has been found that temperature dependences of the saturation magnetization of sintered hard magnetic (Pr, Dy, $M$)$_{2}$(Fe, Co)$_{14}$B ($M$ = Gd, Sm, Nd) alloys demonstrate an increase at a temperature lower than a critical temperature (150 K for Sm and Nd and 70 K for Gd). An additive of copper does not influence the critical temperature. It has been assumed that there is a low-temperature phase in which cobalt is replaced with boron that diffuses from the (Pr, Dy, Gd)(Fe, Co)$_{4}$B phase to the near-surface region of grains of the main magnetic (Pr, Dy, Gd)$_{2}$(Fe, Co)$_{14}$B phase.
Keywords:
Boron, Critical Temperature, Saturation Magnetization, Exchange Coupling, Anisotropy Field.
Received: 24.08.2015
Citation:
E. N. Kablov, O. G. Ospennikova, I. I. Rezchikova, R. A. Valeev, I. V. Cherednichenko, E. I. Kunitsyna, R. B. Morgunov, V. P. Piskorsky, “Low-temperature anomaly of the magnetization in alloys (Pr, Dy, $M$)$_{2}$(Fe, Co)$_{14}$B ($M$ = Gd, Sm, Nd)”, Fizika Tverdogo Tela, 58:3 (2016), 502–505; Phys. Solid State, 58:3 (2016), 515–518
Linking options:
https://www.mathnet.ru/eng/ftt10046 https://www.mathnet.ru/eng/ftt/v58/i3/p502
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