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Effect of Impurities on the Oxygen Adsorption Properties on the NiTi(110) Surface

机译:杂质对Niti(110)表面氧吸附性能的影响

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The effect of 3d-5d elements on the oxygen adsorption energy on the NiTi(110) surface has been studied by the projector augmented-waves method within density functional theory. It is shown that almost all elements, except for a few elements of the end of d periods, lead to an increase in the adsorption energy if they substitute for nickel. On the contrary, the substitutional impurities in the titanium sublattice lower this energy. Based on the analysis of the electronic characteristics of the surface with impurities, it has been found that an increase/decrease in the oxygen adsorption energy on NiTi(110) correlates with a change in the ionic contribution to the mechanism of oxygen bonding with the surface.
机译:在密度泛函理论中,已经研究了Lapleter增强波法研究了3D-5D元件对NITI(110)表面上的氧吸附能量的影响。 结果表明,除了D时段结束的几个元素之外,几乎所有元素,如果它们替代镍,则导致吸附能量增加。 相反,钛算子中的取代杂质降低了这种能量。 基于对杂质表面的电子特性的分析,已经发现,NITI(110)上的氧吸附能量的增加/减少与离子贡献的变化与表面的氧键合机理相关 。

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