Surface diffusion and cluster formation of gold on the silicon (111)

• Autorzy: Plechystyy V. , Shtablavyi I. , Rybacki K. , Winczewski S. , Mudry S. , Rybicki J.

Identyfikatory

DOI

10.5604/01.3001.0014.4920

• Języki publikacji: EN

Abstrakty

EN

Purpose: Investigation of the gold atoms behaviour on the surface of silicon by molecular dynamics simulation method. The studies were performed for the case of one, two and four atoms, as well as incomplete and complete filling of gold atoms on the silicon surface. Design/methodology/approach: Investigations were performed by the method of molecular dynamics simulation using the Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS). MEAM potential of interatomic interaction was used for modelling. Molecular dynamic simulations were carried out in isothermal-isobaric ensemble (NpT) with a timestep 1.0 fs. Findings: As a result of studies, the preferred interaction between gold atoms and the formation of clusters at temperatures up to 800 K was revealed. Analysis of the temperature dependences of the number of large jumps of atoms made it possible to calculate the activation energy of a single jump. It was found that activation energy of single atomic displacement decreases with increasing number of gold atoms. Research limitations/implications: Only a limited number of sets of atoms were used in the study. It is possible that for another combination of atoms and a larger substrate surface, the formation of gold nanoislands on the silicon surface can be observed, which requires further research. Practical implications: The research results can be used to select the modes of gold sputtering to create gold nanoislands or nanopillars on the silicon surface. Originality/value: Computer modelling of the behaviour of gold atoms on the surface of silicon with the possibility of their self-organization and cluster formation was performed for the first time.

Słowa kluczowe

EN

molecular dynamics; surface diffusion; clusters; atomic monolayer; activation energy

PL

dynamika molekularna; dyfuzja powierzchniowa; klastry; monowarstwa atomowa; energia aktywacji

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2020
• Tom: Vol. 101, nr 2
• Strony: 49--59
• Opis fizyczny: Bibliogr. 20 poz., rys., wykr.

Twórcy

autor

Plechystyy V.

• Department of Solid State Physics, Faculty of Applied Physics and Mathematics, Gdansk University of Technology, 11/12 Narutowicza St., 80-233 Gdańsk, Poland
• Physics of Metals Department, Ivan Franko National University of Lviv, 8 Kyrylo and Mephodiy St., 79005 Lviv, Ukraine

autor

Shtablavyi I.

• Physics of Metals Department, Ivan Franko National University of Lviv, 8 Kyrylo and Mephodiy St., 79005 Lviv, Ukraine

autor

Rybacki K.

• Department of Solid State Physics, Faculty of Applied Physics and Mathematics, Gdansk University of Technology, 11/12 Narutowicza St., 80-233 Gdańsk, Poland

autor

Winczewski S.

• Department of Solid State Physics, Faculty of Applied Physics and Mathematics, Gdansk University of Technology, 11/12 Narutowicza St., 80-233 Gdańsk, Poland

autor

Mudry S.

• Physics of Metals Department, Ivan Franko National University of Lviv, 8 Kyrylo and Mephodiy St., 79005 Lviv, Ukraine

autor

Rybicki J.

• Department of Solid State Physics, Faculty of Applied Physics and Mathematics, Gdansk University of Technology, 11/12 Narutowicza St., 80-233 Gdańsk, Poland
• TASK Computer Center, Gdansk University of Technology, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).