On the diffraction pattern of bundled rare-earth silicide nanowires on Si(0 0 1).

Title On the diffraction pattern of bundled rare-earth silicide nanowires on Si(0 0 1).
Authors F. Timmer; J. Bahlmann; J. Wollschläger
Journal J Phys Condens Matter
DOI 10.1088/1361-648X/aa8845

Motivated by the complex diffraction pattern observed for bundled rare-earth silicide nanowires on the Si(0?0?1) surface, we investigate the influence of the width and the spacing distribution of the nanowires on the diffraction pattern. The diffraction pattern of the bundled rare-earth silicide nanowires is analyzed by the binary surface technique applying a kinematic approach to diffraction. Assuming a categorical distribution for the (individual) nanowire size and a Poisson distribution for the size of the spacing between adjacent nanowire-bundles, we are able to determine the parameters of these distributions and derive an expression for the distribution of the nanowire-bundle size. Additionally, the comparison of our simulations to the experimental diffraction pattern reveal that a (1??×??1)-periodicity on top of the nanowires has to be assumed for a good match.

Citation F. Timmer; J. Bahlmann; J. Wollschläger.On the diffraction pattern of bundled rare-earth silicide nanowires on Si(0 0 1).. J Phys Condens Matter. 2017;29(43):435304. doi:10.1088/1361-648X/aa8845

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See more Silicon products. Silicon (atomic symbol: Si, atomic number: 14) is a Block P, Group 14, Period 3 element with an atomic weight of 28.085. Silicon Bohr MoleculeThe number of electrons in each of Silicon's shells is 2, 8, 4 and its electron configuration is [Ne] 3s2 3p2. The silicon atom has a radius of 111 pm and a Van der Waals radius of 210 pm. Silicon was discovered and first isolated by Jöns Jacob Berzelius in 1823. Silicon makes up 25.7% of the earth's crust, by weight, and is the second most abundant element, exceeded only by oxygen. The metalloid is rarely found in pure crystal form and is usually produced from the iron-silicon alloy ferrosilicon. Elemental SiliconSilica (or silicon dioxide), as sand, is a principal ingredient of glass, one of the most inexpensive of materials with excellent mechanical, optical, thermal, and electrical properties. Ultra high purity silicon can be doped with boron, gallium, phosphorus, or arsenic to produce silicon for use in transistors, solar cells, rectifiers, and other solid-state devices which are used extensively in the electronics industry.The name Silicon originates from the Latin word silex which means flint or hard stone.

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