Rare-earth moment reduction and local magnetic anisotropy in Pr2Fe14B and Tm2Fe14B
Rare-earth moment reduction and local magnetic anisotropy in Pr2Fe14B and Tm2Fe14B
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Pr2Fe14B 和 Tm2Fe14B 中稀土磁矩的降低和局部磁各向异性
DOI:
10.1016/j.jmmm.2021.168684
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发表时间:
2022
影响因子:
2.7
通讯作者:
Kato Hiroaki
中科院分区:
文献类型:
--
作者:
Sato Hiroto;Yoshioka Takuya;Tsuchiura Hiroki;Mizuno Yoshiyuki;Koike Kunihiro;Takahashi Kohki;Kato Hiroaki
Magnetization curves for Pr2Fe14B single crystals were measured between 300 K and 900 K. The saturation magnetizationMsalong the [1 0 0] direction was found to be 3% to 6% smaller than that for the [0 0 1] direction, not only at 300 K but also up to the Curie temperature. Published magnetization curves for Tm2Fe14B single crystals were reexamined, in whichMsalong the [0 0 1] direction exceeds that for the [1 0 0] direction. We attributed these differences inMsto the reduction of the rare-earth (R) moment when forced to be aligned along the hard direction by external fields. Significant anisotropy was observed in the paramagnetic susceptibilityχup to 900 K in the Pr2Fe14B (R= Pr) system. Based on the crystalline electric field parameters forR= Pr and Tm systems obtained by first-principles calculations, we numerically evaluated the magnetization and paramagnetic susceptibility at high temperatures. The differences inMsandχobtained from the calculation were in good agreement with the experiments. We found that the reduction rate for the Pr moment at the 4fsite is much smaller than that at the 4gsite. This result suggests a crucial decrease in the local magnetic anisotropy at the Pr(4f) site.
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影响因子:
4
作者:
Yoshioka, T.;Tsuchiura, H.
通讯作者:
Tsuchiura, H.
影响因子:
2.1
作者:
GIVORD, D;LI, HS;DELABATHIE, RP
通讯作者:
DELABATHIE, RP
DOI:
10.2320/jinstmet.j2015055
发表时间:
2016
期刊:
--
影响因子:
--
作者:
Reisho Onodera;Kazuki Ohtake;Kohki Takahashi;S. Kimura;Kazuo Watanabe;K. Koyama
通讯作者:
K. Koyama
影响因子:
2.1
作者:
M. Yamada;Y. Yamaguchi;H. Kato;Hisao. Yamamoto;Y. Nakagawa;S. Hirosawa;M. Sagawa
通讯作者:
M. Sagawa
影响因子:
2.1
作者:
S. Hirosawa;M. Sagawa
通讯作者:
M. Sagawa