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首页> 外文期刊>Physical review >Tailoring resisitivity anisotropy of nanorippled metal films: Electrons surfing on gold waves
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Tailoring resisitivity anisotropy of nanorippled metal films: Electrons surfing on gold waves

机译：调整纳米波纹金属膜的电阻率各向异性：电子在金波上冲浪

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摘要

By using self-organized patterning of polycrystalhne Au electrodes, we demonstrate that the electrical resistivity of the film can be forced to become strongly anisotropic by tailoring a nanoscale ripple undulation at the metal-vacuum interface. Electrons traveling orthogonally to the nanoripples are affected by a strong increase in resistivity, while when electrons travel parallel to the undulations of the rippled film, the resistivity is almost unaffected and even shows a slight reduction. The observations are quantitatively interpreted within the semiclassical size-effect regime in terms of an increase of surface scattering from the large-scale corrugations and of a reduction of diffuse scattering from atomic-scale roughness.
机译：通过使用自组织的多晶金电极的构图，我们证明了通过在金属-真空界面处定制纳米级波纹起伏，可以迫使薄膜的电阻率变得强烈各向异性。垂直于纳米波纹移动的电子受到电阻率强烈增加的影响，而当电子平行于波纹膜的起伏行进时，电阻率几乎不受影响，甚至略有降低。在半经典的尺寸效应范围内，根据大型波纹产生的表面散射的增加和由于原子尺度粗糙度引起的散射的减少，对观测值进行了定量解释。

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