Si segregation in polycrystalline Co2MnSi films with grain-size control
Si segregation in polycrystalline Co2MnSi films with grain-size control
复制标题
晶粒尺寸控制的多晶 Co2MnSi 薄膜中的 Si 偏析
DOI:
10.1063/1.3276073
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发表时间:
2009
影响因子:
4
通讯作者:
G. Hix
中科院分区:
文献类型:
--
作者:
A. Hirohata;S. Ladak;N. P. Aley;G. Hix
In order to characterize the interface/surface properties of polycrystalline Co2MnSi Heusler alloy films, grain-size evolution with increasing annealing time has been investigated. Here, samples with nanometer-scale grains have been prepared by our specially-designed sputtering system in order to maximize the interface/surface area. Our well-controlled grains clearly show Si phase segregation. This Si phase becomes conductive near room temperature and may be responsible for the significant decrease in tunneling magnetoresistance previously reported by [Wang et al., Appl. Phys. Lett. 93, 122506 (2008)].
影响因子:
3.7
作者:
Schneider, H.;Jakob, G.;Adrian, H.
通讯作者:
Adrian, H.