Structure and magnetic property correlation in nanocrystalline SmFe_9

机译：纳米晶体SmFe_9的结构和磁性能相关性

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Sm_xFe_(100-x) samples with x=7.6, 10.5 and 12.5 were prepared by high energy ball-milling and subsequent annealing at various temperature T_a, 600900 deg C, the ordered R3m Sm_2Fe_(17) structure is obtained so that SmFe_9 appears as the out-of-equilibrium precursor of Sm_2Fe_(17). The Curie temperature and hyperfine field augmentation found for SmFe_9 results from an increase of the internatomic distance in the Fe-Fe dumbbell, responsible for a reduction of the negative exchange interaction.

机译：通过高能球磨并随后在各种温度T_a，600 900℃时，获得有序的R3m Sm_2Fe_（17）结构，从而SmFe_9出现为Sm_2Fe_（17）的不平衡前体。发现SmFe_9的居里温度和超精细场增强是由于Fe-Fe哑铃中的内原子距离增加，导致负交换相互作用的减少。

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《Symposium on Nanophase and Nanocomposite Materials III held November 29-December 2, 1999, Boston, Massachusetts, U.S.A.》|1999年|p.95-100|共6页
会议地点 Boston MA(US)
作者
C. Djega-Mariadassou; L. Bessais;
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正文语种 eng
中图分类无线电电子学、电信技术;
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Structure and magnetic property correlation in nanocrystalline SmFe_9

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