Diffusion Enhancement in FePt Nanoparticles for L1$$_0$$ Stability
Diffusion Enhancement in FePt Nanoparticles for L1$$_0$$ Stability
复制标题
增强 FePt 纳米粒子的扩散以提高 L1$$_0$$ 稳定性
DOI:
10.1007/978-3-642-28546-2_5
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
A. Elsukova
中科院分区:
文献类型:
--
作者:
M. Acet;M. Spasova;A. Elsukova
FePt has a high magnetic anisotropy in the thermodynamically stable L1phase, so that nanoparticles of this material could remain ferromagnetic at small sizes and be used for magnetic storage. However, the stabilization of the L1phase is not straight forward at small particle sizes, and instead, twinned icosahedral structures are formed which are thought to be metastable. In order to enhance the formation of the L1phase, the lattice has to be agitated so that icosahedral structures will destabilize. In addition to thermal annealing‚ we introduce agitation methods related to oxygen reactive sputtering, nitriding-denitriding, and segregation in FePt nanoparticles prepared in the gas phase. We discuss principally the structural properties of the particles obtained prior to and after employing the various agitation techniques.
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DOI:
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发表时间:
2003
期刊:
影响因子:
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作者:
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DOI:
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发表时间:
2006
期刊:
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2002
期刊:
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1997
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