Publication

Interlayer Mass-Transport in Homoepitaxial and Heteroepitaxial Metal Growth

Klaus Kern, Harald Brune
1995
Journal Articles

Abstract

We describe a general method for the quantitative determination of the interlayer mass transport in epitaxial growth. Through measurement of the nucleation rate on top of islands as a function of island size and temperature, the additional barrier for an adatom to descend the step edge Delta E(s) can be determined with high accuracy. This approach is applied to the growth of Ag on the (111) surfaces of Ag and Pt. In the homoepitaxial system, the barrier is found to be Delta E(s) = 120 +/- 15 meV, whereas in the heteroepitaxial case it is substantially lowered, Delta E(s) = 30 +/- 5 meV.

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https://infoscience.epfl.ch/entities/publication/6ab0a24a-a314-4b08-9efc-f0d8190680ca

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Klaus Kern, Harald Brune
1995
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/6ab0a24a-a314-4b08-9efc-f0d8190680ca

About this result

Related concepts (32)

Epitaxy

Epitaxy (prefix epi- means "on top of”) refers to a type of crystal growth or material deposition in which new crystalline layers are formed with one or more well-defined orientations with respect to the crystalline seed layer. The deposited crystalline film is called an epitaxial film or epitaxial layer. The relative orientation(s) of the epitaxial layer to the seed layer is defined in terms of the orientation of the crystal lattice of each material.

Error function

In mathematics, the error function (also called the Gauss error function), often denoted by erf, is a complex function of a complex variable defined as: Some authors define without the factor of . This nonelementary integral is a sigmoid function that occurs often in probability, statistics, and partial differential equations. In many of these applications, the function argument is a real number. If the function argument is real, then the function value is also real.

Function (mathematics)

In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function. Functions were originally the idealization of how a varying quantity depends on another quantity. For example, the position of a planet is a function of time. Historically, the concept was elaborated with the infinitesimal calculus at the end of the 17th century, and, until the 19th century, the functions that were considered were differentiable (that is, they had a high degree of regularity).

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Interlayer Mass-Transport in Homoepitaxial and Heteroepitaxial Metal Growth

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