Magnetic structure of single crystal Tb2Fe14B
Magnetic structure of single crystal Tb2Fe14B
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DOI：
10.1016/s0304-8853(99)00519-3
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发表时间：
1999-12-01
影响因子：
2.7
通讯作者：
Harris, VG
中科院分区：
文献类型：
--
作者：
Lee, SK;Das, BN;Harris, VG
采用氙灯光源，用偏光显微镜研究了提拉法生长的Tb_2Fe_（14）B单晶样品的磁结构。畴壁能量，畴壁厚度，和临界单畴颗粒尺寸计算从薄晶体中的平衡畴宽度的测量。计算值与以前的结果从其他永磁化合物进行了比较。RE 2Fe 14 B（RE =稀土元素）单晶中畴壁能量γ的变化与磁各向异性常数K-1的变化成比例。另一方面，在这些单晶中畴壁厚度δ的变化与K-1的变化成反比。这两种趋势都与连续模型（D. J. Craik，Contemp. 11（1970）65）。(C)1999年由Elsevier Science B. V.出版，版权所有。
The magnetic structure of a single crystal Tb2Fe14B sample, grown by the Czochralski process, was studied using polarized light microscopy with a xenon light source. The domain wall energy, domain wall thickness, and critical single domain particle size were calculated from measurements of equilibrium domain widths in thin crystals. The calculated values were compared with previous results from other permanent magnetic compounds. The changes in domain wall energy, gamma, in RE2Fe14B (RE = rare earth elements) single crystals are proportional to changes in magnetic anisotropy constant, K-1. The changes in domain wall thickness, delta, in these single crystals, on the other hand, are inversely proportional to changes in K-1. Both of these trends are in agreement with the continuum model (D.J. Craik, Contemp. Phys. 11 (1970) 65). (C) 1999 Published by Elsevier Science B.V. All rights reserved.