dc.contributor.author | Esen, M. | |
dc.contributor.author | Tuzemen, A. T. | |
dc.contributor.author | Ozdemir, M. | |
dc.date.accessioned | 2019-07-27T12:10:23Z | |
dc.date.accessioned | 2019-07-28T09:47:01Z | |
dc.date.available | 2019-07-27T12:10:23Z | |
dc.date.available | 2019-07-28T09:47:01Z | |
dc.date.issued | 2016 | |
dc.identifier.issn | 1674-1056 | |
dc.identifier.issn | 1741-4199 | |
dc.identifier.uri | https://dx.doi.org/10.1088/1674-1056/25/1/013601 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12418/7612 | |
dc.description | WOS: 000368455100030 | en_US |
dc.description.abstract | The mobility of clusters on a semiconductor surface for various values of cluster size is studied as a function of temperature by kinetic Monte Carlo method. The cluster resides on the surface of a square grid. Kinetic processes such as the diffusion of single particles on the surface, their attachment and detachment to/from clusters, diffusion of particles along cluster edges are considered. The clusters considered in this study consist of 150-6000 atoms per cluster on average. A statistical probability of motion to each direction is assigned to each particle where a particle with four nearest neighbors is assumed to be immobile. The mobility of a cluster is found from the root mean square displacement of the center of mass of the cluster as a function of time. It is found that the diffusion coefficient of clusters goes as D = A (T) N-alpha where N is the average number of particles in the cluster, A (T) is a temperature-dependent constant and a is a parameter with a value of about -0.64 < alpha < -0.75. The value of a is found to be independent of cluster sizes and temperature values (170-220 K) considered in this study. As the diffusion along the perimeter of the cluster becomes prohibitive, the exponent approaches a value of -0.5. The diffusion coefficient is found to change by one order of magnitude as a function of cluster size. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | IOP PUBLISHING LTD | en_US |
dc.relation.isversionof | 10.1088/1674-1056/25/1/013601 | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | diffusion constant | en_US |
dc.subject | cluster mobility | en_US |
dc.subject | Monte Carlo method | en_US |
dc.title | Mobility of large clusters on a semiconductor surface: Kinetic Monte Carlo simulation results | en_US |
dc.type | article | en_US |
dc.relation.journal | CHINESE PHYSICS B | en_US |
dc.contributor.department | [Esen, M.] Cukurova Univ, Vocat Sch Adana, TR-01160 Adana, Turkey -- [Tuzemen, A. T.] Cumhuriyet Univ, Dept Sci & Math Educ, Fac Educ, TR-58140 Sivas, Turkey -- [Ozdemir, M.] Cukurova Univ, Dept Phys, TR-01330 Adana, Turkey | en_US |
dc.identifier.volume | 25 | en_US |
dc.identifier.issue | 1 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |