Robust Ferromagnetism of Chromium Nanoparticles Formed in Superfluid Helium.

Robust Ferromagnetism of Chromium Nanoparticles Formed in Superfluid Helium.
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超流氦中形成的铬纳米粒子的鲁棒铁磁性。

DOI:
10.1002/adma.201604277
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发表时间:
2017
期刊:
Advanced materials (Deerfield Beach, Fla.)
影响因子:
--
通讯作者:
Yang S
Yang S
中科院分区:
--
文献类型:
--
作者:
Yang S

文献摘要

相似文献

铬纳米粒子是使用超流氦液滴作为纳米反应器形成的,它是强铁磁性的。从反铁磁性到铁磁性的转变归因于铬纳米颗粒中原子尺度的无序,导致了丰富的非平衡表面自旋。理论模型证实了一个挫折的聚集过程中超流氦由于铬的反铁磁性质。
Chromium nanoparticles are formed using superfluid helium droplets as the nanoreactors, which are strongly ferromagnetic. The transition from antiferromagentism to ferromagnetism is attributed to atomic scale disorder in chromium nanoparticles, leading to abundant unbalanced surface spins. Theoretical modeling confirms a frustrated aggregation process in superfluid helium due to the antiferromagnetic nature of chromium.