|
Magnetism
Competition of single-ion anisotropy of Sm and Dy ions during the spin-reorientation transition in Nd$_{1-x-y}$Sm$_{x}$Dy$_{y}$)(FeCo)B supermagnets
E. N. Kablova, O. G. Ospennikovaa, V. P. Piskorskya, D. V. Koroleva, E. I. Kunitsynab, A. D. Talantsevb, R. B. Morgunovab 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 an increase in the Sm concentration in the range $x$ = 0.05–0.18 in Nd$_{1-x-y}$Sm$_{x}$Dy$_{y}$)(FeCo)B supermagnets leads to a shift in the spin-reorientation transition temperature to higher values, whereas a Dy addition results in a decrease in the transition temperature. Single-ion anisotropy of Sm and Dy ions has different symmetry, making contributions of opposite signs to the resulting magnetic anisotropy of the lattice. Therefore, the threshold temperature $T_S$ of the spin-reorientation transition, which is determined by the balance of magnetic anisotropies of sublattices, can be controlled using ions with different symmetries.
Received: 13.10.2015
Citation:
E. N. Kablov, O. G. Ospennikova, V. P. Piskorsky, D. V. Korolev, E. I. Kunitsyna, A. D. Talantsev, R. B. Morgunov, “Competition of single-ion anisotropy of Sm and Dy ions during the spin-reorientation transition in Nd$_{1-x-y}$Sm$_{x}$Dy$_{y}$)(FeCo)B supermagnets”, Fizika Tverdogo Tela, 58:7 (2016), 1278–1282; Phys. Solid State, 58:7 (2016), 1320–1324
Linking options:
https://www.mathnet.ru/eng/ftt9912 https://www.mathnet.ru/eng/ftt/v58/i7/p1278
|
Statistics & downloads: |
Abstract page: | 28 | Full-text PDF : | 13 |
|