Publication

Island shape transition in heteroepitaxial metal growth on square lattices

Klaus Kern, Harald Brune
1998
Journal Articles

Abstract

A novel mechanism for ramified island growth in the initial stages of metal heteroepitaxy is reported. Scanning tunneling microscopy measurements reveal that copper islands on Ni(100), as they grow in size, undergo a shape transition. Below a critical size of approximate to 480 atoms, compact islands form, while above this size they develop a ramified shape. This effect is not of kinetic origin and has been observed in an extended range of growth temperature (250-370 K) and deposition Aux (10(-5)-10(-2) monolayer/s). The shape transition is ascribed to the island size dependent strain relaxation.

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https://infoscience.epfl.ch/entities/publication/5676f944-d337-4f9b-a600-68e5722714fe

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Klaus Kern, Harald Brune
1998
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/5676f944-d337-4f9b-a600-68e5722714fe

About this result

Related concepts (23)

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.

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The Marshall Islands (Ṃajeḷ), officially the Republic of the Marshall Islands (Aolepān Aorōkin Ṃajeḷ),NoteTag|Pronunciations:* English: Republic of the Marshall Islands ˈmɑrʃəl_ˈaɪləndzAolepān Aorōkin Ṃajeḷ (hawelepan haw&r&kin mhahjelh) is an island country near Kiribati in the Pacific Ocean, slightly west of the International Date Line. Geographically, the country is part of the larger island group of Micronesia. The nation's population of 42,050 people (at the 2021 World Bank Census) is spread out over five islands and 29 coral atolls, comprising 1,156 individual islands and islets.

Thin film

A thin film is a layer of material ranging from fractions of a nanometer (monolayer) to several micrometers in thickness. The controlled synthesis of materials as thin films (a process referred to as deposition) is a fundamental step in many applications. A familiar example is the household mirror, which typically has a thin metal coating on the back of a sheet of glass to form a reflective interface. The process of silvering was once commonly used to produce mirrors, while more recently the metal layer is deposited using techniques such as sputtering.

Related publications (1)

Island shape transition in heteroepitaxial metal growth on square lattices

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